Sixty kindergarten, 60 second-grade, and 60 fourth-grade students performed several memory tasks under one of six conditions. The conditions differed as to the method of presentation of information. The study was focused on developmental changes in children's use of verbal, nonverbal, and spatial-positional cues for memory. The results, in…

This paper presents a study which indicates that accurate performance on a simple conservation task need not be related to congnitive maturity. Twenty adults and 20 third graders were given three verbal problems, each requiring a same-different judgment and an explanation of that judgment. Only 3 adults were able to give correct judgments, while…