Compared Erwin's Scale of Intellectual Development (SID) and Allen's Paragraph Completion Instrument to enhance understanding of intellectual development according to the Perry scheme. Indicated that the SID-Dualism subscale held the most promise for discriminating between students at various levels of intellectual development, as measured by the…

Explored the relationship between cognitive development and perceptions of environmental press using the Allen (l983) Paragraph Completion Instrument and a version of the Classroom Environment Scale by Moos and Trickett (l974). Persons functioning at varying levels of cognitive development (dualism, multiplicity, late multiplicity, and relativism)…

Describes the initial validation of a new instrument and comprehensive rating manual designed to enhance the accuracy of measurement of the Perry scheme. (Author)

A student development instrument, the Scale of Intellectual Development (SID), designed to measure a model of cognitive development. Validated the instrument with a sample of college freshmen (N=3,321). Results suggest that the SID has promise as a student development instrument; however, additional validation evidence needs to be collected. (RC)

Examined the relationship between academic major, year in college, academic performance, and reflective judgment using the Reflective Judgment Interview. Analyses of results showed significant differences for year in college but not for academic major. (RC)