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. The mean and standard deviation for change in pain for the two interentions were: (a) 15 ± 3mm and (b) 7 ± 4mm. The 95% confidence interval was Cl95-4 to 10mm. Which of the following statements is true? Answers A-C AThe difference between the effects of the two treatments on pain is statistically significant. BNo statistical difference was found between the effects of the two treatments on pain CThere is not enough information to determine if there is a statistically significant difference between the treatments

Explanation / Answer

as our CI contian all value above 0 therefore the test is significant

hence option A is correct

please reply

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