STABILITY OF EDWARDS PERSONAL PREFERENCE SCHEDULE NEED SCALE SCORES AND PROFILES OVER A SEVEN-WEEK INTERVAL
NAVAL AEROSPACE MEDICAL INST PENSACOLA FL PENSACOLA
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Seven-week test-retest correlations were obtained for need scale scores and individual need profiles for a sample of pre-flight students. The coefficients for need scales were in the 50s and 60s 2 of 15 were below .50. Mean scores on 7 of the need scales changed significantly over the seven-week intertest interval. Of the 74 individual profile correlations, 64 were significant the median value was .75. There was some evidence that low profile stability was related to a low consistency score on one or both administrations. The test-retest data were compared with other reliability studies of the Personal Preference Schedule.