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Analysis of Variance2
Data Analysis2
Individual Differences2
Predictor Variables2
Research Design2
Statistical Bias2
Correlation1
Intelligence1
Sampling1
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Journal of Educational…2
Author
Das, J. P.1
Humphreys, Lloyd G.1
Kirby, John R.1
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Journal Articles2
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The Case of the Wrong Exemplar: A Reply to Humphreys.
Peer reviewed Peer reviewed
Das, J. P.; Kirby, John R. – Journal of Educational Psychology, 1978
Humphreys' comments on double-median splits (TM 504 009) are essentially correct, but are not relevant to the original Kirby and Das article (EJ 182 444). His comments do not weaken our findings. (Author/RD)
Descriptors: Analysis of Variance, Data Analysis, Individual Differences, Predictor Variables
Doing Research the Hard Way: Substituting Analysis of Variance for a Problem in Correlational Analysis.
Peer reviewed Peer reviewed
Humphreys, Lloyd G. – Journal of Educational Psychology, 1978
Kirby and Das (EJ 182 444) dichotomized measures of individual differences and treated them as independent variables in an analysis of variance. Correlational analysis would have provided more powerful tests of their hypotheses. Interpretation of the dichotomized variables as independent, causal antecedents of their measures of intelligence would…
Descriptors: Analysis of Variance, Correlation, Data Analysis, Individual Differences