PYC3714-26-EX06 Course Materials & Test Answers | chs.myexams.unisa.ac.za

A researcher wants to

investigate whether a stress

‑

management workshop reduces

students’ perceived stress levels. She recruits 12 university students and

measures their stress levels using the Perceived Stress Scale (PSS) before the

workshop and again four weeks after the workshop. Higher scores indicate higher

stress levels. The dependent t

‑

test produces the following

result: t(11)=2.45, p=0.032. The significance level is α = 0.05. What

conclusion should the researcher draw?

Reject the null hypothesis because p < α?

100%

Accept the null hypothesis as true

The result is not meaningful because the sample size is small

Fail to reject the null hypothesis because p > α?

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