Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2009.1165.1169RajabiGholamreza6200996This research is aimed at normalizing the visual-motor
Bender Gestalt Test among 1014 students (693 boys and 321 girls) that
focused on Koppit′z system for administration and scoring. Findings
indicated a test-retest reliability coefficient (after 4 weeks) of 0.81
(p≤0.001). There was a significant negative correlation between BGT
scores, Good enough-Harris Drawing Test (r = -0.36; N = 80) and Colored
Progressive Matrices Children Test (r = -0.41; N = 117). However, gender-related
differences were found to be significant (p≤0.0001); and males attained
higher error mean scores than their female counterparts. Also, age-related
differences were significant that is older children attained lower error
mean scores than younger children (8 and 7 year-old age-groups children).
The results showed perceptual performance improvement with students′
increasing age, especially for 9 and 10 years-old ones, which is consistent
with Koppit′z maturational hypothesis.]]>Alilo, M.M.,1993Bassa, F.M. and L. Schlebusch,1984Bender, L.,1938Bolen, L.M., J.B. Hewett, C.W. Hall and C.C. Mitchell,1992Brannigan, G.G., S.M. Aabye, L.A. Baker and G.T. Ryan,1995Buros, O. and E.D. Krisen,1978Decker, S.L.,2008Evans, R.I.,1973Fuller, G.B. and B. Vance,1995Ghassemzadeh, H.,1988Gilger, J.W. and B.J. Kaplan,2001Goldstein, D.J. and T.W. Britt,1994Groth-Marnat, G.,2003Joseph, R.,1982Karr, S.K.,1982Koppitz, E.M.,1963Kopiptz, E.M.,1975Lacks, P.,1984Less-Haley, P.R., H.H. Smith, W.C. Williams and J.T. Dunn,1996Parush, S., C. Sharoni, J. Hahan-Markowitz and N. Katz,2000Piaget, J.,1969Poorsharifi, H., N. Sobhi-Gharamalki, R. Alizadeh-Khasraghy and F. Rakhshan,1997Rabin, L.A., W.B. Barr and L.A. Barton,2005Rajabi, G.R.,1997Rajabi, G.R., B. Najarian and H. Hadianfar,1999Rossini, E.D. and J.C. Kaspar,1987Shapiro, S.K. and R.G. Simpson,1995Wertheimer, W.,1923Yousefi, F.,1992Yousefi, F., S. Shahim, A. Razavieh, H.A. Mehryar, A.A. Hosseini and S. Alborzi,1992