What is digit span subtest?
What is digit span subtest? The Digit Span test is a subtest of both the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Memory Scales (WMS). Subjects are read a sequence of numbers and asked to repeat the same sequence back to the examiner in order (forward span) or in reverse order (backward span). What is a normal digit span? The average digit span for normal adults without error is seven plus or minus two. However, memory span can be expanded dramatically - in one case to 80 digits - by learning a sophisticated mnemonic system of recoding rules by...