ERIC Number: ED080553
Record Type: Non-Journal
Publication Date: 1971
Reference Count: N/A
Perceived Difficulty of an Immediate Memory Task.
Borg, Gunnar; And Others
Two experiments were performed using messages of digits presented auditorily at a rate of two digits per second. In both experiments, messages of seven different lengths were employed, consisting of 4 to 10 digits in Experiment 1, and of 2 to 8 digits in Experiment 2. The Ss were asked to recall them in the original order, and then to estimate the difficulty of the task by means of the method of magnitude estimation. Messages were presented in pairs of different lengths, the first message in each pair serving as standard for estimating the difficulty of the other message. All pairs were presented twice. In Experiment 1, perceived difficulty was found to be an exponential function of message length. Ss with a higher immediate memory span gave lower estimates for the longest messages than Ss with a lower span. In Experiment 2, the relation between perceived difficulty and message length appeared to be linear. It is argued that with shorter messages, estimates of difficulty were probably affected by the stimulus variable, while with longer messages the response variable (recall) might have been decisive for the perception of difficulty. (Author)
Publication Type: N/A
Education Level: N/A
Sponsor: Tri-Centennial Fund, Stockholm (Sweden).
Authoring Institution: Stockholm Univ. (Sweden). Inst. of Applied Psychology.