Time estimation as a function of recall: a test of Ornstein's theory of temporal judgement

The storage size metaphor used by Ornstein to explain subjective estimations of the length of time a task had lasted is contrasted with a recall hypothesis on the basis of the distinction between accessibility and availability. The different hypotheses were tested using a design similar to one which measured recall and recognition of common and uncommon words. Results showed that although an equivalent number of words were still in store for both groups, subjects who had learnt common words showed better recall and judged the learning task to have lasted longer. The results are interpreted as being in favour of the recall hypothesis. A preliminary study showed higher recall and longer time estimations for subjects who had performed a semantic orienting task in a levels-of-processing experiment.     

SOCIAL-SKILLS TRAINING FOR UNASSERTIVE CHILDREN: A MULTIPLE-BASELINE ANALYSIS1

The effects of social-skills training consisting of instructions, feedback, behavior rehearsal, and modelling were examined in a multiple-baseline analysis in four unassertive children. The treatment was effective in that the behaviors selected for modification changed markedly. The effects of treatment generalized from trained to untrained items (interpersonal situations requiring assertive responding) and gains were maintained at the two- and four-week followup probe sessions. In addition, overall assertiveness in all subjects increased from baseline assessment to the conclusion of treatment and into followup.     

Book reviews

Wyer, Robert S., Jr. Cognitive Organization and Change : an Information Processing Approach. Potomac, Maryland: Lawrence Erlbaum Associates. 1974. Pp. 502. £10.50.

Egan, J. P. Signal Detection Theory and ROC Analysis. New York: Academic Press. 1975. Pp. 277. £9.75. ISBN

Aldis, O. Play-Fighting. New York: Academic Press. 1975. Pp. 319. £8.75.

Warburton, D. M. Brain Behaviour and Drugs. London: John Wiley. 1975. Pp. 280. £6.95. ISBN 0471 91991 8.

Grieve, D. W., Miller, D., Mitchelson, D., Paul, J. and Smith, A. J. Techniques for the Analysis of Human Movement. London: Lepus Books. 1975. Pp. 177. £5.50.