A study was conducted to compare the effects of two different interventions on p

Question

A study was conducted to compare the effects of two different interventions on pain due to plantar fascitis; (a) 6-weeks stretching plus eccentric strengening exercise and (b) 6-weeks stretching only. 60 subects were assigned to treatment a or b using consecutive assignment. A Visual Analog Scale using a ruler was used to measure pain before and after the intervention. Participants who received treatment a exhibited signifcantly greater reduction in pain (p .012, ES 82). Answers A D A The magnitude of the difference between the two treatments is small. B The magnitude of the difference between the two treatment is medium. CThe magnitude of the difference between the two treatment is large. D There is not enough information to determine the magnitude of the difference between the two treatments X ]

Explanation / Answer

Since there is a significant reduction in pain, the magnitude of difference between the two treatments should be large.

Option C is correct.

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