If a participant does not get any correct answers for a certain digit length, then the experiment concludes. This is referred to as the visual digit span test and can be administered either forward or backward. If the participant only gets 1 answer correct, then the block of trials is repeated again with different numbers even though the digit length remains the same. The digit span test can also be given visually by displaying a series of numbers and then asking the person taking the test to verbally state the numbers and then to write them down in the correct order. If the participant gets 2 answers correct on a block, then digit length is increased. For example, if a participant sees "389", then they need to recall the number "983."ĭepending on whether the participant answers correctly, the task may become more difficult. The minimum length of digits presented is 2 (e.g., 68) and the maximum length is 8 (e.g., 85496371). The Digit Span Forward subtest requires the participant to repeat a sequence of numbers read aloud by the investigator in the same order, whereas the Digit Span Backward Subtest. The participant is shown a series of digits. The goal of the task is to assess a participant's ability to accurately recall a string of digits in the reverse order of how they were presented. This experiment is a version of the Digit-Span memory task. The Digit-Span task is used to measure storage capacity of numbers in working memory.
#FORWARD DIGIT SPAN VS BACKWARD DIGIT SPAN SOFTWARE#
Experiment Author: Psychology Software Tools, Inc.
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