AGE, YEARS OF SCHOOLING, AND INTELLIGENCE AS PREDICTORS OF MILITARY EFFECTIVENESS FOR NAVAL ENLISTEES.
NAVY MEDICAL NEUROPSYCHIATRIC RESEARCH UNIT SAN DIEGO CALIF
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The validity of age, education, and GCT score in the prediction of four criteria of two-year military effectiveness was examined for a group of 952 enlistees who entered Naval Service in 1960. Subjects were graduated from training without being subjected to routine psychiatric screening procedures. Thus, the findings are applicable as a guide for clinicians at training commands who regularly make decisions concerning the efficacy of service retention for recruits who experience adjustmental difficulties in training. The four criteria of effectiveness were pay grade level, division officer ratings of adjustment, semi-annual marks, and record of disciplinary or commendatory action. Data for the 952 subjects comprising the validation sample were analyzed by multiple correlation procedures. Regression equations were derived for each criterion and cross-validated on another subject group of comparable size. The relations of each of the three predictors with the four criteria were found to be statistically significant and consistent from criterion to criterion. When combined, each of the independent variables contributed uniquely to the multiple correlations, but these were generally of small magnitude, ranging from .26 to .45 for the cross-validation sample. Charts were constructed to facilitate the determination of predicted criterion scores from specific combinations of the age, education, and GCT score variables. Author
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