The present study describes the initial use of a measure for assessing children's imaginative predispositions and reports findings of significant relationships between oral reports of imaginativeness and selected individual and family variables. Subjects were 50 preschool children 4 to 5 years of age. Variables investigated were number of parents and siblings in the family and several characteristics of the child: perceived brightness, mental and chronological age, sex, and general intellectual ability. The Peabody Picture Vocabulary Test (Form B) was used to obtain a measure of receptive language IQ. The Imaginative Predisposition Interview Schedule was employed to evaluate predispositions toward aspects of "ludic play." Examiners asked a series of 28 questions and followed each question with two prompts in an effort to assess whether the child emphasized "reality" or "make-believe," to elicit detail, and to obtain a minimum of 100 running words of oral discourse response per question. Children's responses to each question were scored independently by raters on a one to six Likert scale. Perceived intellectual capacity was rated by examiners after testing. Tests of interrater agreement and reliability, as well as correlational and factor analyses, were conducted. Among the results, it was found that preschoolers in single-parent families displayed greater imaginativeness than did those in dual-parent families. Factor analysis yielded 10 factors similar to dimensions of children's actions observed during free play. (RH)