Two experiments examined factors underlying false alarms on recognition tests when the elements of the test items were presented alone for study at different points in time, and when the elements were parts of different 2-element units during study. (Editor)

Three experiments studied the effect of amount and type of concurrent memory load on the rate of readout from iconic memory. (Editor)

When asked to report the first digit that comes to mind, a predominant number (28.4 percent) of the respondents choose 7. Three further experiments sought to establish whether this predominance is due to an automatic activation process or to a deliberate choice. (Editor)

Attempts to provide a clear demonstration that selective attention to self can be determined by the degree to which feedback tends to provide positive or negative discrepancies. (Author/RK)

Describes a general conceptual framework for the study of cognitive conflicts, an experimental paradigm for the analysis of such conflicts, and reviews the results of a series of experiments conducted with the paradigm. Available from American Psychological Association, Inc., 1200 Seventeenth Street, N.W., Washington, D.C. 20036, single copy…

Describes a physics experiment in single and multiple slit diffraction and interference phenomena that illustrates the existence of diffraction gratings in many common objects. (MLH)

This book presents science activities developed by teachers for children ages 3-6 years old. The activities aim to develop science skills including communication, observation, estimation, measurement, cause and effect, investigation, and evaluation in children by using their curiosity as a staring point. Activities include age suggestions, address…

The universities and institutions that deal with undergraduate education generally have a traditional organizational structure: their human resources are allocated to departments which are structured on subjects, and the persons are grouped according to their specialization profile. As a result of this, it has been observed that many groups are…

This policy brief draws on research and evaluations of efforts in Tennessee, California, and Wisconsin to describe different approaches to reducing class size in kindergarten through third grade. Tennessee implemented a randomized experiment to investigate the effectiveness of smaller classes; California used a statewide approach; and Wisconsin…

A general model is derived for the purpose of efficiently allocating integral numbers of units in multi-level designs given prespecified power levels. The derivation of the model is based on a constrained optimization problem that maximizes a general form of a ratio of expected mean squares subject to a budget constraint. This model provides more…

Author presents a brief record of probes directed towards the experiential enrichment of the normal person. The experiments are also explorations into human potentials and efforts to enlarge understnading of the contents and processes of the human mind. (Author/RK)

This article discusses a method of teaching and learning in which the family is used as a paradigm, providing the prototype for subsequent relationships. It is hypothesized that if the dynamics of familial relations are understood, it should be possible to perceive analogous dynamics at work in other relationships. (Author/RWP)

Research supported in part by the Japanese Ministry of Education. (DD)

Report on an experiment at the University of Maryland. (DD)