Test of Nyborg's General Trait Covariance (GTC) model for hormonally guided development by means of structural equation modeling

Abstract

Nyborg's General Trait Covariance (GTC) model for hormonally guided development investigates the influence of gonadal hormones and fluid intelligence on body build, achievement, and socioeconomic variables. According to the model, testosterone should be negatively related to height, fat/muscle ratio, intelligence, income, and education. It is conceived that this influence should be determined to a great extent by mutual relationships between these variables. The model was tested by means of structural equation modeling (SEM) in a sample of 4375 males who had served in the United States Armed Forces. The results largely confirm Nyborg's androtype model but in addition reflect the relationships between the variables included in a quantitative causal manner. It could be shown that testosterone has a negative influence on crystallized intelligence and that this effect is mainly mediated by the negative influence of testosterone on education. An additional multiple group analysis testing for structural invariance across age groups revealed that the mediating role of education is more pronounced in old veterans. Copyright © 2002 John Wiley & Sons, Ltd.

References

Bollen

K. A.

(1989). Structural equations with latent variables. New York: Wiley.

Carroll

J. B.

(1984).Raymond B. Cattell's contribution to the theory of cognitive abilities. Multivariate Behavioral Research, 19,300–306.

Cattell

R. B.

(1971). Abilities: Their structure, growth and action. Boston, MA: Houghton‐Mifflin.

Centers for Disease Control. (1988).Health status of Vietnam veterans. Journal of the American Medical Association, 259,2701–2719.

Chou

C. P.

Bentler

P. M.

(1995). Estimates and tests in structural equation modeling. In R. H. Hoyle (Ed.), Structural equation modeling(pp.37–55). Thousand Oaks, CA: Sage.

Dabbs

J. M.

de La Rue

Williams

P. M.

(1990).Testosterone and occupational choice: actors, ministers, and other men. Journal of Personality and Social Psychology, 59(6),1261–1265.

Dabbs

J. M.

Morris

(1990).Testosterone, social class, and antisocial behavior in a sample of 4462 men. Psychological Science, 1,209–211.

Gold

R. F.

(1978).Constitutional growth delay and learning problems. Journal of Learning Disabilities, 11(7),427–429.

Holmes

C. S.

Karlsson

J. A.

Thompson

R. G.

(1985).Social and school competencies in children with short stature: longitudinal patterns. Journal of Developmental and Behavioral Pediatrics, 6(5),263–267.

10.

Holmes

C. S.

Thompson

R. G.

Hayford

J. T.

(1984).Factors related to grade retention in children with short stature. Child Care, Health and Development, 10(4),199–210.

11.

Horn

J. L.

(1985). Remodeling old models of intelligence. In B. B. Wolman (Ed.), Handbook of intelligence: Theories, measurements, and applications(pp.267–300). New York: Wiley.

12.

Horn

J. L.

Cattell

R. B.

(1966).Refinement and test of the theory of fluid and crystallized general intelligences. Journal of Educational Psychology, 57(5),253–270.

13.

Hoyle

Panter

(1995). Writing about structural equation models. In R. H. Hoyle (Ed.), Structural equation modeling, concepts, issues and applications(pp.158–176). Thousand Oaks, CA: Sage.

14.

L. T.

Bentler

P. M.

Kano

(1992).Can test statistics in covariance structure analysis be trusted? Psychological Bulletin, 112,351–362.

15.

Jöreskog

K. G.

(1993). Testing structural equations models. In K. A. Bollen , & S. J. Long (Eds.), Testing structural equations models(pp.295–316). Newbury Park, CA: Sage.

16.

Jöreskog

K. G.

Sörbom

(1993). LISREL8 user's guide. Chicago, IL: Scientific Software International.

17.

Jöreskog

K. G.

Sörbom

(1996). PRELIS 2 user's reference guide: A program for multivariate data screening and data summarization; a preprocessor for LISREL. Chicago, IL: Scientific Software International.

18.

Kelloway

E. K.

(1998). Using LISREL for structural equation modeling: A researcher's guide. Thousand Oaks, CA: Sage.

19.

Kline

R. B.

(1998). Principles and practice of structural equation modeling. New York: Guilford.

20.

Krauth

(1993). Einführung in die Konfigurationsfrequenzanalyse (KFA). Weinheim: Beltz.

21.

Krauth

Lienert

G. A.

(1973). KFA—Die Konfigurationsfrequenzanalyse und ihre Anwendung in Psychologie und Medizin. Freiburg: Alber.

22.

Kretschmer

(1921). Körperbau und Charakter. Berlin: Springer.

23.

Mackintosh

N. J.

(1998). IQ and human intelligence. Oxford: Oxford University Press.

24.

Muldoon

M. F.

Ryan

C. M.

Matthews

K. A.

Manuck

S. B.

(1997).Serum cholesterol and intellectual performance. Psychosomatic Medicine, 59(4),382–387.

25.

Netter

Toll

Rohrmann

Hennig

Nyborg

(2000).Configural frequency analysis of factors associated with testosterone levels in Vietnam veterans. Psychologische Beiträge, 42,504–514.

26.

Nyborg

(1979, June).Sex chromosome abnormalities and cognitive performance V: female sex hormone and discontinuous cognitive development. InCognitive studies. Symposium conducted at the Fifth Biennial Meeting of the International Society for the Study of Behavioural Development, Lund.

27.

Nyborg

(1983).Spatial ability in men and women: review and theory. Advances in Human Research and Theory, 5,39–140.

28.

Nyborg

(1984). Performance and intelligence in hormonally different groups. In G. Vries , J. Bruin , H. Uylings , & M. Corner (Eds.), Sex differences in the brain: Progress in brain research(pp.491–508). Amsterdam: Elsevier.

29.

Nyborg

(1987).Individual differences or different individuals? That is the question. The Behavioral and Brain Sciences, 10,34–35.

30.

Nyborg

(1988).Sex hormones and covariant body, brain and behavioural development. Neuroendocrinology Letters (Abstracts), 10,217.

31.

Nyborg

(1990).Good, bad and ugly questions about heredity. Behavioral and Brain Sciences, 13,142–143.

32.

Nyborg

(1994). Hormones, sex, and society: The science of physicology. Westport, CT: Praeger.

33.

Nyborg, H. (Ed.). (1997). The scientific study of human nature: Tribute to Hans J. Eysenck at eighty. Amsterdam: Pergamon–Elsevier.

34.

Nyborg

Jensen

A. R.

(2000).Testosterone levels as modifiers of psychometric g. Personality and Individual Differences, 28(3),601–607.

35.

Nyborg

Jensen

A. R.

(2001).Occupation and income related to psychometric g. Intelligence, 29(1),45–55.

36.

Olweus

Mattson

Schalling

Low

(1988).Circulating testosterone levels and aggression in adolescent males: a causal analysis. Psychosomatic Medicine, 50(3),261–272.

37.

Rotter

J. I.

Wong

E. L.

Lifrak

E. T.

Parker

L. N.

(1985).A genetic component to the variation of dehydroepiandrosterone sulfate. Metabolism Clinical and Experimental, 34(8),731–736.

38.

Rovet

J. F.

(1983).Cognitive and neuropsychological test performance of persons with abnormalities of adolescent development: a test of Waber's hypothesis. Child Development, 54(4),941–950.

39.

Sandberg

D. E.

Barrick

(1995).Endocrine disorders in childhood: a selective survey of intellectual and educational sequelae. School Psychology Review, 24(2),146–170.

40.

Sheldon

W. H.

Stevens

S. S.

Tucker

W. B.

(1940). The varieties of human physique. New York: Harper.

41.

Swaminathan

Algina

(1978).Scale freeness in factor analysis. Psychometrika, 43(4),581–583.

42.

Tsai

E. C.

Boyko

E. J.

Leonetti

D. L.

Fujimoto

W. Y.

(2000).Low serum testosterone level as a predictor of increased visceral fat in Japanese–American men. International Journal of Obesity and Related Metabolic Disorders, 24(4),485–491.

43.

Ukkola

Gagnon

Rankinen

Thompson

P. A.

Hong

Leon

A. S.

Rao

D. C.

Skinner

J. S.

Wilmore

J. H.

Bouchard

(2001).Age, body mass index, race and other determinants of steroid hormone variability: the HERITAGE Family Study. European Journal of Endocrinology, 145(1),1–9.

44.

West

S. G.

Finch

J. F.

Curran

P. J.

(1995). Structural equation models with non‐normal variables: problems and remedies. In R. H. Hoyle (Ed.), Structural equation modeling(pp.56–75). Thousand Oaks, CA: Sage.

45.

Zmuda

J. M.

Cauley

J. A.

Kriska

Glynn

N. W.

Gutai

J. P.

Kuller

L. H.

(1997).Longitudinal relation between endogenous testosterone and cardiovascular disease risk factors in middle‐aged men: a 13‐year follow‐up of former multiple risk factor intervention trial participants. Journal of American Epidemiology, 146(8),609–617.