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. Author manuscript; available in PMC: 2006 Sep 5.
Published in final edited form as: J Neuropsychiatry Clin Neurosci. 2005;17(1):98–105. doi: 10.1176/appi.neuropsych.17.1.98

TABLE 2.

Internal Consistency (Alpha Coefficient Reliability) of CANS-MCI Tests

CANS-MCI Test Scores No. of Items Coefficient Alpha
General Reaction Time 10 .828
Word-to-Picture Matching (Latency) 14 .865
Design Matching 136 NA*
Stroop (Discordant Latency) 48 .963
Clock Hand Placement 30 .902
Free Recognition I (5 Trials of 20 Items) 5 .939
Guided Recognition I Errors 5 .927
Guidance Recognition I (Percent Correct) 5 .588
Free Recognition II (1 Trial) 20 .637
Free Recognition I & II Combined (6 Trials) 6 .935
Picture Naming 42 .766
Picture Naming (Latency) 42 NA*
*

Since participants did not all answer the same number of items, reliability analyses could not be performed.

If an item was incorrect, the subject received a guided recall test on that item.