Accession Number:

AD0678678

Title:

THE CAPACITY FOR GENERATING INFORMATION BY RANDOMIZATION,

Descriptive Note:

Corporate Author:

MEDICAL RESEARCH COUNCIL CAMBRIDGE (ENGLAND) APPLIED PSYCHOLOGY RESEARCH UNIT

Personal Author(s):

Report Date:

1965-10-20

Pagination or Media Count:

11.0

Abstract:

Response selection was studied independently of the stimulus by asking subjects to generate random sequences of letters or numbers. Experiment 1 varied rate of letter generation from 12 sec. to 4 sec. per item and showed that the redundancy of the sequence increased linearly with rate. Experiment 2 added random generation of letters as a secondary task to paced card sorting. Information load per card was varied from 1 through 2 to 4 to 8 alternatives, with sorting rate held constant. As predicted, the redundancy of the sequences generated increased linearly with sorting load. Experiment 3 varied number of items to be randomized. Rate of random generation increased systematically from 2 to 4 to 8 alternatives, but levelled out beyond this point, showing no difference between 16 and 26. In general, these results suggest a response-selection mechanism of limited informational capacity. Author

Subject Categories:

  • Psychology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE