Training in diagnostic techniques

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Nurcombe and Fitzhenry-Coor (1979) have argued that training in diagnostic techniques should lead a clinician to generate and test more hypotheses in coming to a decision about a case. Suppose we take 10 psychiatric residents who are just beginning their residency and use them as participants. We ask them to watch a videotape of an inter- view and to record their thoughts on the case every few minutes. We then count the number of hypotheses each resident includes in his or her written remarks. The experi- ment is repeated with the same residents at the end of the residency with a comparable videotape. The data are given.

Participant

	1	2	3	4	5	6	7	8	9	10
Before	8	4	2	2	4	8	3	1	3	9
After	7	9	3	6	3	10	6	7	8	7

(a) Analyze the data using Wilcoxon's matched-pairs signed-ranks test.

(b) What would you conclude?

Reference no: EM131162805

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