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Digits Backwards Variables

I am going to say some numbers. Listen carefully, and when I am through, I want you to say them backwards.

[Instructions to Interviewer]: Read the digits at the rate of one per second, letting the voice pitch drop on the last digit. Then ask the subject to repeat the sequence backwards. You may not repeat a sequence. Score each backwards repetition as an error (0) or as correct (1).

Variable

Data Type

Digits Backwards Elements

Allowable Codes

DigBakP1

integer

[Practice 1]: For example, if I say 2-8-3, what would you say?

0	Error
1	Correct
8	Refusal
9	Don't Know
Null	Missing

DigBakP2

integer

[Practice 2]: Ready? 1-5-8.

DigBak1a

integer

Ready? 5-1

DigBak1b

integer

Here is another: 3-8

DigBak2a

integer

Here is another: 4-9-3

DigBak2b

integer

Here is another: 5-2-6

DigBak3a

integer

Here is another: 3-8-1-4

DigBak3b

integer

Here is another: 1-7-9-5

DigBak4a

integer

Here is another: 6-2-9-7-2

DigBak4b

integer

Here is another: 4-8-5-2-7

DigBak5a

integer

Here is another: 7-1-5-2-8-6

DigBak5b

integer

Here is another: 8-3-1-9-6-4

DigBak6a

integer

Here is another: 4-7-3-9-1-2-8

DigBak6b

integer

Here is another: 8-1-2-9-3-6-5