Experiment was designed to test the explanation of the developmental interaction separately for the item learning and associative learning components. (Author)

While any method of data collection is subject to certain unique types of systematic errors, the investigator has available several techniques for detecting such errors or for minimizing their effects on his conclusions. (Author/JB)

Problems of research design and the formulation of concepts are presented as methodological criticisms of Arthur Jensen's article: "How Much Can We Boost IQ and Scholastic Achievement? Harvard Educational Review, (Winter, 1969). A related article is EJ 006 296. (MF)

Issues pertaining to the documentation of positive outcomes for severely handicapped learners as a function of their educational programs are addressed, and the value of the general evaluative concept of educational validity is emphasized. Issues related to the current overreliance on the single-subject experimental model are also discussed. (SEW)

Reviews a study which found that symptoms associated with posttraumatic stress disorder (PTSD) are neither unique to or common among Vietnam veteran psychiatric patients or their Korean war counterparts. Questions choice of study sample, confounding variables, and source of data. A rebuttal by the original author is included. (WAS)

Provides a descriptive overview of the design, revision, and execution of a research project undertaken at the Department of Library and Information Studies at the Manchester Polytechnic to evaluate the attitudes of library science students toward computers before and after the completion of a course in library automation. (JL)