A Researcher Plans to Conduct a Study to Compare Two

question 53

Multiple Choice

A researcher plans to conduct a study to compare two groups.Based on previous research,she anticipates a medium effect size.She does a power analysis with alpha level of .05.This power analysis tells her

• A) the t-test outcome and degrees of freedom she should expect.
• B) Cohen's d for her study.
• C) the sample size she will need to observe a statistically significant finding.
• D) the practical significance of her research.

---

Definitions:

Rh Factor

A protein found on the surface of red blood cells that can cause immune reactions during blood transfusions or pregnancy.

Marker

An identifiable physical or genetic indicator that can be used for tracking or identification purposes.

Heroin Addiction

A severe substance use disorder characterized by dependency on heroin, a powerful opioid drug, leading to significant health, social, and economic problems.

Methadone

A medication used in the treatment of opioid dependency and as analgesia in chronic pain management.