Short-term visual memory in normals and retardates

Autor: Norman R Ellis, Mary W Headrick
Rok vydání: 1964
Předmět:
Zdroj: Journal of Experimental Child Psychology. 1:339-347
ISSN: 0022-0965
DOI: 10.1016/0022-0965(64)90026-8
Popis: In two experiments, three groups of Ss differing in ability level were tested for retention of a six-item array by the partial report method after delays of 0, 1, 6, 10, 15, or 45 seconds. The 0-second delay produced a performance decrement, while delays of 1 and 6 seconds were optimal. Performance declined slightly, but significantly, only when delays were increased to at least 20 seconds. All groups improved with daily practice. No significant group differences were found, but between-group differences were highly consistent across delays and in both experiments. The 0-second performance decrement was discussed in terms of metacontrast effects. The data suggest that while the average number of items retained by Ss may differ with ability level, adequacy of retention is comparable for groups differing in IQ.
Databáze: OpenAIRE