College-level chemistry questions and satisfactory answers are provided. (CP)

Detailed instructions for use in an undergraduate level course are provided. (CP)

Presents the results of two experiments concerning the phenomena of the interference of probabilities and of the so called Aharonov-Bohm effect. An electron biprism and a standard electron microscope have been used for the experiments. (Author/GA)

Describes the use of programmable calculators to perform classroom controlled experiments on economic models. The complete program for exploring the dynamics of the Harrod-Domar equation is given. Some difficulties encountered and statistical uses are mentioned. (BC)

Discusses Zeeman's experiment of the Fiyea effect for the speed of light in a moving medium and existing measurement errors. (SL)

It is argued that there is a fundamental difference in the perception of the nature of man on the part of humanistic critics and traditional experimental social psychologists which leads to different assessments of the long-term effects of deception research on subjects. (Author/AM)

Two experiments were conducted with Chinese subjects to investigate whether phonemic similarity affected the visual information processing of Chinese characters. The first experiment used a short-term retention paradigm and the second, a sentence judgment task. Results were discussed with respect to the issues of orthographical differences and of…

Three word-identification experiments suggest that a model derived from experiments with pseudowords can be applied successfully to word identification. The data derived from the experiments confirm the role of higher order verbal units in word identification and suggest the structural components of a verbal-mediation theory of reading. (Editor/RK)

Social traps, such as the overgrazing of pasturelands, overpopulation, and the extinction of species, are situations where individuals in a group respond for their own advantage in a manner damaging to the group. Alaboratory analog was devised to simulate conditions that produce social traps. The intent was to cause an immediate positive…

An attempt was made to determine from role playing and questionnaire responses the extent to which persons believe that the evaluations of them made by a persuader and an observer are affected by their yielding or nonyielding responses to a persuasive attempt. Implications for social behavior are considered. (Author/RK)

Six laboratory experiments on learned helplessness and depression in humans reported by Seligman and his colleagues were critically reviewed. A number of methodological and conceptual problems were discussed. Suggests that it is important for psychologists to scrutinize psychological theories in order to assess their conceptual clarity and…

Describes a procedure to demonstrate the effect of a magnetic force on a moving charge. The materials used are inexpensive and with the use of an overhead projector, easily visible to an entire class. (CP)

Examination of the snowfall and total precipitation data for Rochester, New York, suggests a correlation with sunspot activity. Data from other locations tend to support the thesis, but the ability to predict yearly snowfall or total precipitation amounts from sunspot activity has yet to be developed. (Author/CP)

Previous studies have indicated that explaining a hypothetical event makes the event seem more likely through the creation of causal connections. However, such effects could arise through the use of the availability heuristic; that is, subjective likelihood is increased by an event becoming easier to "imagine". Two experiments were designed to…

The story of the national evaluation of the Follow Through program mirrors the difficulties in trying to evaluate a complex social program that changed its community service orientation to a strategy of planned variation of early childhood programs. (Author/MLF)