Tamara wants to know how many subjects she should use in her study. To answer this question, Tamara should
A) calculate the study's effect size.
B) use null hypothesis significance testing.
C) conduct a power analysis.
D) construct a BESD.

Question

Quizplus · Accepted Answer

Conducting a power analysis can help Tamara determine the appropriate sample size needed for her study. This analysis takes into account factors such as the effect size, significance level, and power to estimate the sample size needed to detect significant results. Therefore, C is the best choice. A is incorrect because calculating the effect size does not directly determine the appropriate sample size. B is incorrect because null hypothesis significance testing does not inform on sample size. D is not a recognizable term in research methodology.

Tamara Wants to Know How Many Subjects She Should Use