Predictors of Navy attrition. II. A demonstration of potential usefulness for screening.

The Sailors Health Inventory Program (SHIP) questionnaire is a medical and psychosocial history questionnaire completed by all Navy recruits. This study was an investigation of the potential usefulness of the SHIP questionnaire for screening to reduce basic training attrition. The sample consisted of 66,690 Navy recruits. Although the most valid individual SHIP items for predicting attrition tended to be psychological or behavioral in nature, a composite of 40 diverse SHIP questions (including medical questions) was found to be the best overall attrition predictor. Further analyses revealed that the 40-item composite is a considerably more powerful attrition predictor than is either educational credential or mental ability score, which together are currently the U.S. military's primary attrition management tools. Finally, the consequences of using different cutoff scores on the 40-item composite were simulated so that various hypothetical screening strategies could be considered.