Four models of coalition formation are tested in a computer-controlled experiment in which three players negotiated to form coalitions in order to gain rewards for themselves. Various measures of the progress of negotiations are introduced, examined, and discussed. (Editor/RK)

A method of analyzing reaction time data in recognition memory is presented. A wide range of phenomena that any theory of recognition memory must explain is discussed. (Editor/RK)

Discusses research strategies employed in studies of the importance of adult social cues in controlling children's behavior, illustrating some of the limitations of sole reliance on laboratory paradigms for achieving an understanding of both the contemporaneous operation and the development of social cue effectiveness. (JH)

Discusses a project in which college students equipped a house with three different types of solar energy collectors and two vertical axis windmills. (MLH)

Tests the hypothesis that the effectiveness of discriminative stimuli as reinforcers is a function of the magnitude of the difference between them. (Author/RK)

Attempts to assess the effects of the mode and patterning of rehearsal on the acquisition and retention of modeled behaviors varying in organizational properties. (Author/RK)

Describes an experiment that illustrates the following points concerning the experimental determination of trypsin activity: (1) there is a difference in basing enzyme concentration on weight, absorbance, or active sites; and (2) the method of expressing enzyme concentration determines the value of specific, molecular, and catalytic center…

Describes an experiment in which the technique of ph-controlled extractive separation is used to separate a mixture of drugs aspirin (acidic), caffeine (basic), and phenacetin (neutral). (MLH)

Describes three experiments illustrating some technological applications of liquid crystal substances, which are currently used to display numbers and letters by scattering of ambient light. (MLH)

Discusses the planning and organization of an instrumental analysis course for chemistry majors designed to acquaint the students with an appreciation of the variety of ways available for a given analysis. Describes grading procedures and the use of taped lectures. (MLH)

Suggests a study of plant dyes as a way of stimulating student interest and enthusiasm; provides an example of a student report on this subject. (GS)

This chapter examines the core analytic elements of randomized experiments for social research. Its goal is to provide a compact discussion for faculty members, graduate students, and applied researchers of the design and analysis of randomized experiments for measuring the impacts of social or educational interventions. Design issues considered…

Cover story, in the sense of context, is a potentially relevant factor in the assessment of reasoning and problem solving in science, given repeated demonstration of its effects on laboratory tasks. This study follows up on a preliminary interview study that showed cover story influenced the way students were assessed at the end of an…

Experimenter bias effects were experimentally manipulated in a sample of 97 school psychologists scoring 3 subscales (Similarity, Vocabulary, and Comprehension) of the Wechsler Intelligence Scale for Children-Third Edition (WISC-III). First year (n=29), interns (n=42), and experienced (n=26) psychologists were randomly assigned to either a bias or…

Understanding students' challenges about using microcomputer based laboratories (MBLs) would provide important data in understanding the appropriateness of using MBLs in high school chemistry laboratories. Identifying students' concerns about this technology will in part help educators identify the obstacles to science learning when using this…