Abstract
Preschool is an important educational setting for child development, and problem behavior is a prevalent barrier within this setting. Preschool teachers have expressed the need for evidence-based classroom management interventions to address problem behavior. Class-Wide Function-Related Intervention Teams (CW-FIT) is an intervention that incorporates social skills training, group contingencies, and reinforcement to address problem behavior within classrooms. This intervention has been found to be socially valid by teachers and children, and effective in increasing children’s engagement, decreasing problems/problem behavior in elementary, kindergarten, and first- and second-grade classrooms. The aim of the current study was to evaluate a modified CW-FIT as an effective strategy to address problem behavior within two community preschools in Ireland across three preschool classes with 32 children. A multiple-baseline design across groups was employed to evaluate the outcomes, with measures of generalization and maintenance (for one group) also taken. Visual analysis of data revealed an increase in the children’s on-task behavior and social skills as well as a decrease in children’s problem behavior within these settings. Generalization (across all three groups) and maintenance (across one group) of these findings for on-task behavior and problem behavior were also observed. Social validity measures showed that teachers rated the intervention as socially acceptable.
Keywords
Introduction
Preschool teachers report managing problem behaviors as their biggest challenge with young children (Alkon et al., 2003) and have expressed the need for evidence-based interventions to address this challenge within preschool settings (Benedict et al., 2007). Without early intervention, problem behavior can have both an immediate negative impact within the preschool environment (i.e., limiting learning opportunities) and a delayed negative impact with regard to the child’s outcomes in later life, with increased risk of mental health issues and antisocial behavior (Bywater, 2012; Campbell, 1995). Within the early childhood education sector in Ireland, two key themes highlighted in the Children’s Rights Alliance (2017) Report Card are (a) proactive early intervention to build prosocial skills and (b) using a continuum model of supports ranging from universal methods to targeted individualized behavior support plans. Positive Behavior Interventions and Supports (PBIS) encompasses these two themes through applying a behaviorally based systems approach across three tiers: Tier 1 involves universal supports, Tier 2 involves targeted group supports, and Tier 3 involves targeted individualized support (Lewis et al., 2002).
PBIS strategies can be implemented at a school-wide (SWPBIS) level. However, teachers report that classroom management is the most difficult element of their role. If classroom management practices are not effective, this will impact the effectiveness of a systems approach at a school-wide level (Barrett & Davis, 1993; Reinke et al., 2012). To address this, Class-Wide Function-Related Intervention Teams (CW-FIT; Wills et al., 2010) has been developed, within a PBIS framework, to remediate problem behavior across three tiers (Jolstead et al., 2016) at the classroom level, rather than a school-wide level. CW-FIT Tier 1 incorporates three components: (a) social skills training, (b) group contingencies, and (c) reinforcement.
Implementation of CW-FIT with children aged 4 to 5 years has been found to increase children’s engagement, reduce disruptions, and increase rates of teacher praise in elementary, kindergarten, as well as first- and second-grade students (Caldarella et al., 2015; Conklin et al., 2016; Kamps et al., 2011; Wills et al., 2014). Its effectiveness has been demonstrated across specific classroom settings such as dual immersion (Hansen et al., 2017) and music (Caldarella et al., 2016). In addition to the positive changes in behavior, both teachers and children rated CW-FIT as socially valid (Caldarella et al., 2015; Kamps et al., 2011). More recently, Jolstead et al. (2016) utilized CW-FIT Tier 1 to effectively increase on-task behavior in children across four preschool classrooms. Children and teachers rated the intervention as socially valid. However, no generalization or maintenance data were gathered, and no measures were taken on class-wide levels of problem behavior to evaluate the influence of CW-FIT implementation on this variable.
The first component of CW-FIT Tier 1 is social skills teaching. Within early childhood settings, not all children understand socially acceptable behaviors, and systematic teaching of expected behaviors is often essential (Merrell & Gimpel, 1998; Stormont et al., 2008). Social skills have been found to be learned more efficiently by children if taught in context, using definitions, modeling, and role-play, and practiced daily (Carter & Pool, 2012; LeGray et al., 2013; Merrell & Gimpel, 1998). Direct instruction is a teaching method that incorporates these strategies; however, this teaching method is underresearched within the preschool population. In 2016, Jolstead and colleagues utilized direct instruction to teach social skills to the preschool children as part of CW-FIT. Social skills from prior studies and curricula were utilized and taught to replace inappropriate behaviors with appropriate behaviors for (a) gaining access to activities and tasks, (b) gaining attention from teachers and peers, and (c) to escape from tasks. Unfortunately, the study employed no direct measures on the social skills taught (Jolstead et al., 2016). A subsequent study by Conklin et al. (2016), which addressed this variable, found improved performance in social skills (e.g., hand-raising, talk with a quiet voice) taught during CW-FIT over baseline levels. As with all other CW-FIT research, the specific social skills taught were derived from previous studies and reviews of existing curricula. No research to date has undertaken a group functional assessment (GFA) to identify the maintaining functions of the problem behavior(s) prior to delivery of CW-FIT.
Group contingencies form the second component of CW-FIT Tier 1. Interdependent group contingencies (IGC) are the most commonly used group contingency within previous research in early childhood settings (Pokorski et al., 2016). IGC have been found to be effective in increasing on-task behavior and decreasing problem behavior of children (Ling & Barnett, 2013; Murphy et al., 2007; Payne et al., 2016) and are associated with numerous advantages including promoting teamwork and increased peer interactions. Teacher praise is one element used within the group contingency (Kamps et al., 2011). Within early childhood settings, increased use of frequent, specific praise statements, contingent on appropriate behavior, by teachers has resulted in reduced disruptive behavior and increased appropriate behavior for preschool children (Stormont et al., 2007).
Integral to the effectiveness of an IGC, to motivate the students to engage with it, is the identification of a potent reinforcer (Cooper et al., 2014). However, Conklin et al. (2016) was the only CW-FIT study to outline a preference assessment as part of their study, and limited detail prevents the replication of this assessment within the CW-FIT framework. Layer et al. (2008) outlined a group preference assessment, which effectively identified preferences among preschool children. Preferences were assessed simultaneously in groups of three; each child selected a visual representation of a reinforcer and put it in a box by “voting,” to indicate their preference. A card was randomly selected from the box and all three children received the “mystery” reinforcer depicted on the card. Mystery motivators in conjunction with IGC have also been found to be effective in reducing problem behaviors in preschool children (Ling & Barnett, 2013; Murphy et al., 2007).
Given the increasing prevalence of problem behavior within preschool settings and the importance of early intervention to support positive long-term social and educational outcomes, the aim of the current study was to investigate CW-FIT Tier 1 within Irish preschool settings. The current study aimed to extend on the findings of Jolstead et al. (2016) by (a) using a GFA, pre-intervention, to identify the functionally equivalent target social skills; (b) utilizing a group preference assessment to identify reinforcers; (c) gathering data on the acquisition of the social skills taught through direct instruction; and (d) gathering data on the generalization of the effects of CW-FIT Tier 1.
Method
Participants
Convenience sampling was used to select preschools that were willing and available to participate in the research. Participant information sheets were first provided to preschool managers, who were contacted directly by the first author and, if interested, passed it on to their preschool teachers. If a preschool teacher consented to participate, participant information sheets and consent forms were provided to all parents of children in their class.
A total of 32 children participated. There were 11 children in Group 1, which was the entire preschool population. For Groups 2 and 3, 11 children were randomly selected from two preschool classes of 22 children (after consent was received, by pulling names out of a box); one child withdrew from Group 3. Each preschool class included children ranging in age from 2 years 10 months to 5 years 3 months (Group 1: M = 3.18, SD = .85; Group 2: M = 4.13, SD = .65; Group 3: M = 3.7, SD = .55). In Group 1, there were four females and seven males; in Group 2, there were seven females and four males; and in Group 3, there were eight females and two males. The children attended preschool on average for 3 hr a day. For 33% (n = 11) of children, English was not their first language; their different nationalities included Irish, Spanish, Afghan, Pakistani, Polish, Russian, and Lithuanian. All children were typically developing, except one child with a diagnosis of autism spectrum disorder and three other children with language delays.
Setting
The study was conducted in two community preschools, located within urban areas of low socioeconomic status (established by using the deprivation index accessed through Pobal: “ArcGIS Web Application,” 2019). The settings were standard preschool classrooms with tables, chairs, bookshelves, and play areas with toys. Each group had a female preschool teacher. Teacher 1 was 45 years of age, had 23 years’ experience, and a diploma in Montessori. Teacher 2 did not disclose age, had 16 years’ experience, and a Further Education and Training Awards Council (FETAC) Level 6 Early Childhood Studies qualification, which is equivalent to a U.S. associate-level degree. Teacher 3 was 49 years old and had 16 years’ experience with a FETAC Level 6 Early Childhood Studies qualification.
Across each group, the context of the experimental phase was constant as each teacher identified one problematic hour across the preschool day. Teacher 1 identified activity time from 9:30 a.m. to 10:30 a.m.; this involved the children sitting in groups of three to four at different tables and carrying out puzzles and jigsaws. Teacher 2 and Teacher 3 identified the transition from lunch/snack to circle time and during circle time as the problematic period. During the transitional period, children ate lunch/snack at different rates, ranging from 5 to 20 min. If a child was finished before their classmates, they could read in the library or color before circle time began. In Group 2, this was 11:00 a.m. to 12:00 p.m., and in Group 3, this was 2:00 p.m. to 3:00 p.m.
Design
A multiple baseline design across groups was used to examine the effects of CW-FIT Tier 1. Data were gathered across multiple variables for child behaviors (i.e., target social skills, on-task behavior, and problem behavior). Probes for generalization of all dependent variables were also taken. On-task behavior was the dependent variable that was utilized as the change in conditions indicator, as data were gathered continuously throughout each session for this variable. In line with the definition, on-task behavior is mutually exclusive to off-task behavior, and on-task behavior could not be scored if problem behavior was occurring.
Dependent Variables
Variables included frequency counts of social skills, momentary time sampling of on-task behavior, and frequency counts of problem behavior. Operational definitions and examples of all dependent variables are available in Table 1.
Operational Definition of Dependent Variables.
Procedures
Functional assessment of problem behavior
Prior to baseline, a Functional Assessment Interview (FAI; O’Neill et al., 1997) was conducted with each teacher. This was to identify the most common problem behaviors the children within the group engaged in and to gather information about them within their respective classroom to inform Antecedent Behavior Consequence (ABC) analysis. The FAI is a structured interview designed to attain information about an individual’s behavior(s) and the conditions under which it is likely or not likely to occur. Teachers were asked to provide a precise description of the most commonly occurring problem behavior(s) across all the children in the preschool classroom, rather than for one specific child. Identified behaviors included rough play, shouting in the classroom, noncompliance, and running in the classroom (see Table 1 for operational definitions). The section asking for personal information was not included in the interview. Teachers then indicated both antecedent and consequence variables, and identified the communication skills within the group, previous teaching strategies (both successful and unsuccessful), and a reinforcer inventory.
Chandler et al.’s (1999) GFA method was used to conduct ABC (O’Neill et al., 1997) data collection on the identified problem behaviors of each individual student within each group during the identified problematic period. This involved dividing the children into observation groups of three to four children. The researcher observed each child in sequential order and recorded the occurrence of the target behavior(s). A total of five 3-min observations (15 min) were undertaken per child as per Chandler et al. (1999; modified from 10 observations to five observations due to time constraints), ABC data were analyzed, and the prevalence of antecedents and consequences was tallied. Outcomes of the analysis identified the most commonly observed antecedent preceding and consequences following the problem behaviors from this tally for each group, such that the functionally equivalent social skills to teach could be identified. The first author, who was a trainee behavior analyst, had received extensive training on ABC data collection recording and completed the ABC data collection.
Baseline
Data collection was conducted on all dependent variables for the first 20 min of the problematic periods identified by teachers, for each group. During observation periods, the children engaged in their typical routines as designed within each classroom. Based on the location in which the children were seated, they were placed into clusters of three to four children, although they were not informed of this, to facilitate momentary time-sampling data collection. Frequency counts of target social skills and problem behavior were taken across the entire group, during each observation session, the number per session an aggregation of each child’s behavior. Data were recorded on the on-task behavior, of clusters of children, using 30-s momentary time sampling, signaled to the researcher via a vibrating timer. The researcher had a 5-s window to scan each cluster. At each 30-s interval, the researcher would rotate from one cluster of children to another and recorded engaged behavior if each child in the cluster was on-task at that point or a minus for on-task behavior, if any child was not attending to the material. If, at the end of the 30-s interval, a child was inhibiting others from attending to their materials, a minus was recorded for on-task behavior, and the presence of problem behavior was recorded in addition. Average on-task behavior for the whole class was calculated by adding the number of on-task intervals for each cluster and dividing it by the total number of possible intervals.
Group preference assessment
A modified version of Layer et al.’s (2008) group preference assessment was utilized. Pictures of the reinforcers were presented rather than requiring the children to associate a particular reinforcer with a color card to simplify the assessment procedure. First, the 10 most highly rated items identified in the reinforcer inventory completed by each teacher were selected to use in the group preference assessment. The children were also asked if they liked the suggested items and activities. The group preference assessment was conducted to identify each child’s preference before every group contingency started. To inhibit children influencing each other’s selection, the children were instructed to keep their choice private. In groups of three, children were each asked separately to select their preferred item: “point to the picture that they would like to do/have the most” from an array of four cards (pictures of the identified reinforcing items/activities). If they did not respond within 5 s, the vocal instruction was repeated. If they pointed to more than one picture, it was stated that “I’m not sure which one you want the most, pick again.” This picture was then put in a box, labeled the “voting box.”
Staff training
Teachers all participated in a Behavioral Skills Training (BST) program, which consisted of instruction, modeling, rehearsal, and feedback (Sarokoff & Sturmey, 2004). The teachers were provided with scripted lessons of the social skills comprising four steps employing direct instruction and a scripted procedure for the group contingency (i.e., written protocol denoting the target responses and the schedule of reinforcement delivery). Training was delivered individually with the researcher in a 2-hr session post-baseline and consisted of the review of a written document with an explanation of the rationale for the intervention and detailed explanations of each component (i.e., skills teaching, group contingency, and reinforcement). The modeling component of this training involved the researcher sitting in front of the teacher and modeling teaching each of the social skills using direct instruction (using definitions, modeling, and role-play) three times. Rehearsal involved each teacher practicing teaching each of the social skills scripts to the researcher 3 consecutive times. The researcher modeled the group contingency for a 3-min period where the researcher role-played being the teacher and the teacher role-played being a child. The timer was set for 30-s intervals and upon the timer sounding, the researcher modeled scanning the class and both praising the child for displaying social skills throughout the time period as well as awarding the points to a group. Rehearsal for the group contingency involved the researcher acting as the child and each teacher rehearsing the intervention for a 3-min period, 3 consecutive times. Verbal feedback (both positive and constructive) was given to teachers immediately following each rehearsal of the group contingency practice with opportunities for questions.
Throughout training, the researcher reminded the teacher of the importance of using group-wide and behavior-specific praise (Kamps et al., 2011). Each teacher was then required to rehearse each component of the intervention, with the researcher role-playing a child until they reached mastery criteria of 100% as indicated by performance observations (i.e., social skill steps taught, rationale for skill explained, modeling, and role-plays) across two consecutive trials. For the first 4 to 5 days of intervention implementation, teachers were provided with in situ training by the researcher until they were able to independently implement teaching with 100% fidelity as indicated by startup fidelity observations (i.e., social skill steps taught, rationale for skill explained, modeling, and role-plays) in the natural setting. The first author attended all intervention sessions. If implementation fell below 80% fidelity, BST would have been conducted again; if implementation or quality of implementation fell below 100% fidelity, teachers received onsite verbal feedback. Verbal feedback was provided in four instances for Group 1, three instances for Group 2, and one instance for Group 3 around giving reinforcement immediately, providing corrective feedback, and setting the timer at appropriate intervals.
Class-wide teaching
CW-FIT Tier 1, which included social skills instruction and an IGC, was delivered by teachers within preschool classroom settings. Functionally equivalent social skills for each group were identified, from the GFA, by the first author and clinical supervisor. The social skills identified were based on information identified from the FAI, which highlighted social skills that peers were engaging in, and the steps of the social skills were based on previous CW-FIT social skills. Scripted lessons were developed and adapted from previous CW-FIT research (Jolstead et al., 2016; Can I have help please?). Teachers delivered social skills instruction to the children through 10-min scripted lessons using Direct Instruction. Lessons included definitions of each skill and accompanying cues/hand gestures for each skill, modeling of examples and nonexamples, role-plays, and feedback. Scenarios were set up, where children were required to display the gestures for each step of a skill and explain the rationale before moving on to the next skill. Examples of the gestures for asking the teacher for help included raising one hand and holding the index finger to lips (to show waiting quietly), while holding the second hand in air before asking the question. The scripted lessons were repeated until all children had displayed the gestures for each skill and explained the rationale at least once. Visual aids, which outlined the specific steps of each of the social skills, were 24 in. × 36 in. posters in clear view of the children. The order in which the social skills were taught for each group was based on the results of the functional assessment. The social skills taught in Group 1 in the following order were: Can the class have 2 more minutes? (primary function: escape); (secondary function: teacher attention); Can I have a turn? (tertiary function: tangible). The skills taught in Group 2 and 3 in the following order were: Can I play a game with a friend? (peer attention); Can the class have 2 more minutes? (escape); and, within circle time, Can I do a Jumping Jack? (escape). An additional skill of “how to ignore other’s inappropriate behavior” was also taught in each group. This was the final skill taught across all groups, aiming to decrease bootleg reinforcement. The social skills were outlined before each IGC began. This process of testing and teaching ensured that children who were not maintaining the skills were identified (through not being able to complete the steps in the skill) and accessed the booster teaching sessions. Booster sessions consisted of a 10-min scripted lesson, delivered to the child by the teacher before the next intervention session.
IGC
The children were broken into groups of three to four depending on where the children were sitting. As described, prior to commencing the 20-min social skills session, each child indicated their preferred reinforcer by casting their anonymous vote. The group contingency was delivered by the teacher for 20 min of the designated problematic time period for each group. Prior to the intervention, the teacher outlined the rules of the group contingency, which was referred to as a “game,” and the target social skills (provided an explanation of each skill). A game chart (a poster 11 × 17 in.), which was used to keep track of team points, was placed on the wall. This chart listed the social skills in rows on the left and listed colors that represented each team along the top columns, providing cells to mark team points and the social skills that had occurred.
The teachers set a digital audible timer at intervals typically between 1.5 and 3 min. Each day, a point goal (i.e., how many points each team was required to reach to access reinforcement) was set by the teachers, and the team was required to reach this goal to receive a reinforcer. For each session, the point goal was determined by calculating 75% to 85% of possible timer beeps (e.g., if the timer was set for 3 min, the observation session 20 min was divided by 3, which equals 6.6, 75% of 6.6 is 4.9, so 5 points would be required that day). When the timer sounded, the teacher scanned each team (within a 5-s window) and awarded points and praise to a team contingent on all the children demonstrating engagement with the designated task at that time. Class-wide and individual behavior–specific praise was provided, by the teacher, to children for being on-task and for displaying the social skills throughout the game (i.e., “well done to all the teams, everybody is doing great listening today”; “fantastic job at raising your hand ____”). Throughout the group contingency, not dependent on the timer, the teachers awarded a group a point if all children, in a team, were displaying one of the taught target social skills. Minor behaviors that were not disruptive were ignored. On completion of the IGC, the teacher tallied team points and selected the “mystery motivator” available to the teams that met the predetermined criteria. The children were also praised again for using the social skills and being on-task. Data collection was identical to baseline and took place for the duration of the IGC. In addition, generalization data were also gathered for a 20-min observation during the problematic period, when the IGC was not in effect. These data were collected by the researcher.
Interobserver agreement (IOA) and treatment fidelity
Interobserver agreement was assessed by the first author. Video recordings were gathered for 20% of all intervention sessions to calculate IOA. The video recordings were independently reviewed by the first author using the same data collection methods outlined in baseline. This was carried out with no access to the data or knowledge of the number of behaviors that occurred in each session. IOA was calculated by summing up the total number of agreements between original data collection and the data collection from the video recording and dividing it by the complete number of timings. To specify the exact degree of agreement, the ratio was multiplied by 100 (Kazdin, 1982). IOA average across sessions ranged from 94.1% to 97.22%. Treatment fidelity data were collected during 90% of intervention sessions using a 13-item CW-FIT treatment fidelity checklist, on which the researcher scored each teacher. Treatment fidelity was calculated by dividing number of correct responses by the number of possible correct responses and gaining percentage values by multiplying by 100 and was found to be 91.3% (SD = 7.57) fidelity, on average, by the preschool teachers.
Social validity
The Intervention Rating Profile–15 (IRP-15; Witt & Martens, 1985) was completed by teacher participants post-intervention. This is a questionnaire that employs a 6-point Likert-type scale with 15 items in total to assess the social validity of an intervention. The questionnaire assesses variables such as if teachers thought there were any risks involved for participants as a result of the intervention, if it was appropriate for a given participant or situation, if it negatively impacted other student participants, or whether implementation was too time-consuming (Witt & Martens, 1985). Higher total scores reflect higher rates of social validity of an intervention, with total scores ranging from 15 to 90.
Generalization and follow-up probes
During baseline, intervention and post-intervention generalization probes were undertaken. Generalization probes consisted of a 20-min observation period, during the problematic period (on the hour period identified by the teacher), when the group contingency was not in effect. Data were recorded in an identical way to baseline for all target behaviors.
Follow-up probes were conducted for Group 1, during the 20 min in the identified problematic hour the group contingency was in effect, to examine if the intervention effects on the dependent variables were maintained 1 day, 1 week, and 2 weeks. Groups 2 and 3 were not available for follow-up probes.
Effect size estimate
Tau-U, which is a nonparametric, nonoverlap effect size method, was utilized, allowing examination of intervention effects between phases (percentage of data demonstrating improvement; Parker et al., 2011). Tau-U was calculated using an online calculator (Vannest et al., 2011) and interpreted as per Vannest and Ninci’s (2015) recommendations as dependent on context, a small change (0.20 improvement), a moderate change (0.20–0.60), a large change (0.60–0.80), and a very large change (above .80).
Results
The data for the implementation of CW-FIT Tier 1 are evaluated based on frequency of social skills, percent of 30-s intervals of on-task behavior, and frequency of problem behavior across all three preschool classes. The results are presented in accordance with each research aim.
Functional Assessment
Results of analysis from ABC data found escape from demands to be the primary function for children within Groups 1 and 3 (see Figure 1). In addition, for children in Group 3, there were elevated levels of behavior under the peer attention condition. Similarly, results from the assessment of problem behavior in Group 2 indicated that peer attention was the primary function, with escape from demand evidencing elevated levels. Analysis of ABC data indicated that problem behavior was displayed by five, six, and six children across Group 1, 2, and 3, respectively.

Frequency of observed antecedent events prior to problem behavior and frequency of observed consequences following problem behavior across all three groups: Antecedent and consequence analysis.
Social Skills
At baseline, all groups had low levels of social skills. Group 2 evidenced one session (Session 8), just prior to intervention implementation where there was an increase in social skills levels (see Figure 2). Following intervention, all three groups evidenced increases in social skills (see Table 2 for means, standard deviations, and range of all three variables). Tau-U indicated certainty of this change in social skills from baseline to intervention phase across all three groups (see Table 2). Probes for generalization during baseline phase for social skills found that there were low stable levels across Groups 2 and 3, and a decreasing trend in Group 1. Probes for generalization during the intervention phase found low levels of social skills across all three groups, however, both Groups 2 and 3 had one session (Sessions 19 and 17, respectively) where there was a large increase in frequency of social skills. Follow-up probes, for Group 1, at 1 day, 1 week, and 2 weeks, indicated that high levels of social skills with variability, comparable with the intervention phase, were maintained.

Frequency of social skills during baseline, and intervention and generalization probes across Groups 1 to 3 and post-intervention for Group 1.
Means, Standard Deviations, and Minimum, and Minimum and Maximum Range for Dependent Variables.
Significant at the p < .05 level. **Significant at the p < .01 level. ***Significant at the p < .001 level.
On-Task Behavior
At baseline, the data from children in all three groups demonstrated a decreasing trend of on-task behavior (see Figure 3). Following intervention, all three groups displayed high levels of on-task behavior, which remained stable across the intervention. Tau-U indicated certainty of this change in on-task behavior from baseline to intervention phase across all three groups (see Table 2). Probes for generalization during baseline found that on-task behavior was variable, ranging from moderate to high levels in Group 1. In Groups 2 and 3, at baseline generalization probes, on-task behavior was at a variable high level. Probes for generalization during the intervention phase found that on-task behavior levels were comparable with the levels obtained in the intervention phase. Follow-up probes, for Group 1, at 1 day, and both follow-up and generalization probes at 1 week and 2 weeks, displayed that high levels of on-task behavior, comparable with the intervention phase, were maintained.

Mean percentage of on-task behavior during baseline, intervention, and during generalization probes across Groups 1 to 3 and post-intervention for Group 1.
Problem Behavior
At baseline, the data from children in Group 1 demonstrated a decreasing trend in problem behavior (see Figure 4). Following intervention, a large decrease in problem behavior was evidenced across all groups. Tau-U indicated certainty of this change in problem behavior from baseline to intervention phase for Group 1, a large change for Group 2, and a moderate change for Group 3 (see Table 2). Probes for generalization during baseline found that problem behavior was at a moderate level in all three groups except for one probe (Session 7) in Group 3, where there were low levels. Probes for generalization during the intervention phase found that levels of problem behavior were comparable with those obtained in the intervention phase. Follow-up probes, for Group 1, at 1 day, and both maintenance and generalization probes at 1 week and 2 weeks, displayed low levels of problem behavior, comparable with the intervention phase.

Frequency of problem behavior, during baseline, intervention, and during generalization probes across Groups 1 to 3 and post-intervention for Group 1.
Social Validity
All three preschool teachers rated the intervention as socially acceptable (average IRP score: m = 77.). In relation to the open-ended questions, both Teachers 2 and 3 reported that what they would change was not the intervention itself; rather, they would have implemented the intervention across the whole preschool classroom. All three teachers reported that students found the points and reinforcers motivating.
Discussion
The aim of the current study was to examine the effect of a function-based CW-FIT Tier 1, a positive behavior support (PBS)-based intervention, within three community preschool classrooms. The findings are discussed in terms of the study research aims. First, a novel aspect of this study, which extends on previous research, was the application of a GFA to identify functionally equivalent social skills to replace the class-wide problem behavior. With a growing number of children with additional needs within preschool settings and an increase in risk factors for problem behavior, it is important for research to explore interventions to target such needs (Camargo et al., 2014; Early Years Sector Profile Report, 2017). The GFA enabled the development of skills that were guided by teacher input and direct observation. This stakeholder involvement in the design of a component of the intervention may have resulted in more engaged teacher participation, but measures of engagement would be necessary to verify this (Esmail et al., 2015). Although there was some overlap with previous social skills taught in CW-FIT research, an additional functionally equivalent skill that was identified was “Can I play a game with a friend?,” which was maintained by peer attention. In previous CW-FIT research, peer attention and teacher attention are not differentiated; these findings may indicate the need for this distinction to be made. This was previously highlighted by Northup et al. (1995) who examined the differential effects of peer versus teacher-maintained problem behavior of three children with attention-deficit/hyperactivity disorder (ADHD).
Second, the current study extended Conklin et al.’s (2016) study by collecting data on the displayed frequency of identified taught social skills. In line with Conklin et al.’s (2016) study, implementation of CW-FIT resulted in an increase in social skills, which supports the use of direct instruction within the preschool environment (Jolstead et al., 2016).
Third, another novel aspect to this research is that most previous CW-FIT studies have reported problem behavior data pertaining to one child rather than class-wide data; the current findings provide further evidence for the effectiveness of CW-FIT Tier 1 in decreasing class-wide problem behavior. Consistent with previous CW-FIT studies, this intervention was found to be effective at increasing child on-task behavior while decreasing child problem behavior (Caldarella et al., 2015; Conklin et al., 2016; Kamps et al., 2011). These findings further extend Jolstead et al.’s (2016) research with the addition of probes for generalization, which indicated that problem behavior was at low levels across all three classes and that on-task behavior levels were comparable with the levels obtained in the intervention phase. More specifically, these findings support further the effectiveness of this intervention with preschool-aged children (Jolstead et al., 2016).
Limitations and Areas for Future Research
While there were many strengths to the current study, there were also limitations that must be discussed. First, given the applied nature of the research, it was not possible to alter the schedule of the preschool day, which resulted in generalization probes occurring in the playground. Future research should factor in all eventualities related to the natural conditions of the preschool routine and its variations in the research design to ensure opportunities for programmed generalization. Also, as generalization probes were conducted within the problematic period, post-CW-FIT Tier 1 implementation, there may have been carry-over effects from the skills taught during the intervention.
Second, group-wide levels of social skills were variable within the current study and did not generalize, which indicates the children’s behavior may have been under the control of the group contingency. There were variances in the activities carried out during the group contingencies, suggesting that while some activities may have created the motivating operations for a specific social skill, others may not have. For example, if a child is doing a puzzle they find challenging, they are more likely to ask for help than if they are doing an easy puzzle. Further research could look at having one group implement the full CW-FIT Tier 1 and a comparison group implement a group contingency (including classroom rules) and reinforcement to further validate the social skills component of CW-FIT. The current study extended research by Conklin et al. (2016) by gathering data on the frequency of identified taught social skills. Further research should investigate the effects of programming for generalization of social skills. Such interventions could examine (a) exploiting current functional contingencies, (b) training more diversely, and (c) incorporating functional mediators (Gunning et al., 2019).
Third, the current intervention evidenced high levels of fidelity across teachers; however, IOA data were not gathered for fidelity. As in Jolstead et al.’s (2016) study, it is unknown if the researcher providing in situ training for the teachers for the initial 4 to 5 days of intervention affected the effectiveness of implementation, as well as the in situ feedback throughout the intervention. It is also unknown how early childhood educators would implement this intervention without this extra assistance, in particular, the novel component of this study, the GFA. Future research is warranted comparing the standard CW-FIT Tier 1 with the function-based CW-FIT Tier 1 applied in this study, to examine feasibility, effectiveness, and social validity.
Fourth, data on problem behavior were an aggregation of each child’s behavior per session. While there is information on each child’s behavior from the ABC data collection, it is not available as an individual breakdown per child for baseline, intervention, and generalization sessions. Future research should collect information on both group-wide levels of problem behavior and individual data to be able to determine how many children the intervention was influencing.
In summary, function-based CW-FIT, which included the novel components of a GFA and a group preference assessment with mystery motivators, was found to be effective in reducing class-wide problem behavior and increasing preschool children’s on-task behavior and the use of appropriate social skills. These findings provide further support for the use of evidence-based behavioral strategies within the early childhood setting.
Footnotes
Acknowledgements
The authors would like to thank Galway City and County Childcare Committee and all preschool staff. Also, sincere thanks to the participants, for without their participation, this research would not have been possible.
Authors’ Note
The research was conducted by the first author under the supervision of the fourth author in partial fulfillment of the requirements for her MSc in Applied Behavior Analysis at National University of Ireland (NUI), Galway.
Declaration of Conflicting Interests
The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
Funding
The author(s) received no financial support for the research, authorship, and/or publication of this article.
