Data are presented evaluating the validity and reliability of the Personality Assessment Questionnaire (PAQ), a self-report questionnaire designed to elicit respondents' perceptions of themselves with respect to seven personality and behavioral dispositions: hostility and aggression, dependence, self-esteem, self-adequacy, emotional responsiveness, emotional stability, and world view. Two versions of the PAQ (in English and Spanish) have been developed, one for adults and a second for children. The child version is designed to be used with children from age 7-11. Adolescents and adults normally use the Adult PAQ. The validity and reliability of the Adult PAQ and Child PAQ (English versions) have been shown to be adequate. A sample of 147 college students was used to assess the validity and reliability of the Adult PAQ. A sample of 220 fourth and fifth graders was used to assess the validity and reliability of the Child PAQ. Internal consistency results and factor analysis results are reported for both testing samples. Concurrent, convergent, and discriminant validities of the scales were found to be adequate. Both versions of the PAQ are susceptible to social desirability and acquiescence in children's and adults' responses to some PAQ scales. (Author)