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Scenario I
Scenario I is based on fabricated data inspired by the following study:
Swee, G. & Schirmer, A. (2014). On the importance of being vocal: saying ''ow'' improves pain tolerance. The Journal of Pain, 16(4), 326-334.
Vocalization and Pain Tolerance
Swee and Schirmer (2014) examined the effect of behavioral interventions on pain tolerance in adults. Participants submerged their nondominant hand in an ice bath on five different occasions. During each occasion they either said "ow," heard a recording of them saying "ow," heard a recording of someone else saying "ow," pressed a button, or did nothing. The researchers hypothesized that what participants did while their hand was in the ice bath would increase how long they kept their hand in the ice bath. The results of the study showed that when participants said "ow" they were able to keep their hand in the ice bath significantly longer than during any of the other treatment conditions.
-(Scenario I) Suppose the researchers still measured the effect of all five treatments on pain tolerance, but each participant was only measured under one treatment condition. In making this adjustment the research design would change from a _____________ design to a _____________ design.
A) between subjects; within subjects
B) within subjects; longitudinal
C) longitudinal; between subjects
D) within subjects; between subjects

Question

Quizplus · Accepted Answer

The original design was a within-subjects design because each participant was measured under all five treatment conditions. By measuring each participant only under one treatment condition, the design would change to a between-subjects design. Therefore, the correct answer is D, within subjects to between subjects.

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