Taylor (1980) claims to show that the similarity in IQ between monozygotic twins reared apart found in prior studies is due to similarity in their environments. A reanalysis using Taylor's classification of environments but an alternative IQ measure shows that his findings do not constructively replicate. (Author/RD)

This article is concerned with estimation of components of maximum generalizability in multifacet experimental designs involving multiple dependent measures. An example of a two-facet partially nested design is provided. (Author/RC)

An empirical comparison is made of three proposed indices of relative predictor variable contribution: (1) the scaled weights of the first discriminant function; (2) the total group estimates of the correlations between each predictor variable and the first function; and (3) the within-groups estimates of the correlations between each predictor…

Refutes Mauger and Kolmodin's (1975) conclusion (see EJ 133 651) that their data does not support the author's (1968) conclusion that senior college grades are much less predictable from entrance information than freshman grades. States that their conclusion was not supported by their data and that the design of their study would allow no outcome…

Several procedures are outlined for replacing missing values in multivariate analyses by regression values obtained in various ways, and for adjusting coefficients (such as factor score coefficients) when data are missing. None of the procedures are complex or expensive. (Author)

A new measure of correlation and a measure of scale are proposed which are substantially more robust than their least squares counterparts. Increased robustness may also be obtained by use of equal regression weights, or knowledge of the theoretical structure of the weights. (Author/HG)

A direct proof is given for the generalized Spearman-Brown formula for any real multiple of test length. (Author)

The worries & wishes of 14 -19 years-old adolescents of Abadeh, Bavanat & Khorambid cities in the north of Fars province are investigated in this research. The wishes & worries are measured by wishes measurement scale (WMS) and Ahwaz worry inventory (AWI) respectively. The Ss consisted of 300 Adolescents (150 girls & 150 Boys) that…

Mathematics and science achievements have been assessed in the Third International Mathematics and Science Study (TIMSS) and its repetition (TIMSS-R). Most existing reports are largely separated into the subject domains. This article is focused on an examination of the relationship between mathematics and science achievements based on student test…

The American College Testing (ACT) Program's Collegiate Assessment of Academic Proficiency (CAAP) was chosen as Arkansas'"rising junior exam" to measure learning in the general education curriculum. A study was conducted with a group of 124 college students to determine the predictability of CAAP scores based on ACT scores and cumulative…

If the best universities in the world--who have the widest choice of candidates--systematically appoint top researchers as their vice chancellors and presidents, is this one form of evidence that, on average, better researchers make better leaders? This paper addresses the first part of the question: are they currently appointing distinguished…

This article summarizes selected information showing key aspects of the theory and application of bio-data prediction, and it provides test data supporting its opening statements concerning criteria. (Author/RK)

The purposes of this study were to develop a simplified form of the MMPI and to demonstrate its equivalence to the standard form. Such a revision would extend the range of application of the instrument. (Author)

This study provides additional data on the validity of the MCPS when used with severely disturbed children. (Author)

A geneticist discusses the heritability of intelligence and points out the pitcalls that lie in the path of those who try to estimate the heritability of IQ differences. (Editor)