Measuring Short Term Memory Span by Investigating the Relationship Between Digital and Spatial Span Tasks.

2038 Words Mar 14th, 2006 9 Pages
MEASURING SHORT TERM MEMORY SPAN BY INVESTIGATING THE RELATIONSHIP BETWEEN DIGITAL AND SPATIAL SPAN TASKS.

ABSTRACT

The purpose of this experiment was to measure short term memory span by looking into the relationship between two span tasks: digital and spatial. The experiment measured digit span and spatial span for each participant by carrying out two trials of each task out at the end of which the participants noted their scores down. The participants task was to recall the sequence of the spatial blocks and digits. After the two tasks were completed the correlation between the two tasks and their scores was calculated and the participants memory span was calculated. The results demonstrated that spatial span and
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The nonsense syllables would not be known to the participants and and thus any differences in memory for these items under different conditions would represent a genuine property of the memory system. One of the major criticism of Ebbinghaus' experimental work was that it lacked ecological validity, that is it was not true to real life as participants do not learn nonsense syllables.

Smyth and Scholey studied the relationship between articulation time and memory performance in verbal visuospatial tasks. They used several different methods to measure spatial span and digital span and found that the two had a relatively weak correlation of 0.23. The main reason given for this weak correlation was that the output method was different for both tasks and was not consistent through the tasks. This experiment tried to replicate the Smyth and Scholey study by studying the relationship between digit span and spatial span. . This experiment measured digit span and spatial span for each participant by carrying out two trials of each task out at the end of which the participants noted their scores down. The participants task was to recall the sequence of the spatial blocks and digits. After the two tasks were completed the correlation between the two tasks and their scores was calculated and the participants memory span was calculated. In this experiment the correlation between digital span and spatial span was calculated to be 0.79 which is in comparison to the 0.23

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