Study conducted by the Aptitudes Research Project at the University of Southern California, under Contract Nonr-228(20) with the Office of Naval Research, Personnel and Training Branch.

Evaluated the possibility that three-year-olds solve small-number conservation problems by an empirical procedure whereby the sets are quantified each time presented. Children chose the more numerous of two arrays, one containing two elements and the other three elements. Results disconfirmed claims that three-year-olds can conserve small numbers.…

Reports results of a study to assess ability of children from different age groups (N=144) to generalize two hierarchically related concepts (Insect and Animal) with and without instruction in the form of a mental set. Also examined effects of age, I.Q., and sex on ability to generalize these concepts. (Author/JN)

Outlines the interview-about-instances method for investigating student understanding of concepts and to give some indication of the rationale behind the method. Provides specific examples of the type of information that can be obtained and lists the advantages and limitations of the approach. (GS)

Reber found that subjects given neutral instructions to memorize letter strings from a synthetic language learned more about the underlying grammar than those instructed to try discovering the rules for letter order. Two experiments explored the relationship between implicit and explicit processes in the acquisition of complex knowledge.…

Shows how elaboration theory (ET) sequences the concepts in a taxonomy and argues that the product of an ET analysis is usually in general agreement with sequencing based on learning prerequisite relationships, and that ET sequencing of taxonomic concepts will not violate learning prerequisite relationships. (Author/MER)

College students read two passages. Four groups answered questions requiring either a summary, a new example of the concept, a list of critical attributes of the concept, or identification of a new example. The "identify post-question group" showed the greatest accuracy in classifying new examples. (Author/MH)

A continuation of the exploration of the various ways that knowledge and insight are achieved. Explains that even instruction in basic skills can benefit from this appreciation. Provides descriptions of classroom activities that demonstrate how the various modes of knowing can be used for conceptual exploration. (FL)