The main purpose of peer reviewers in research is:

• To provide funding for research projects

• To evaluate the quality and validity of research

• To conduct the research themselves

• To publish the research findings

Why is it usually impossible to survey every single person in a population?

• Because of the population's size

• Because of the population's diversity

• Because of the population's location

• Because of the population's age

What type of sampling involves selecting participants who are readily available?

• Convenience sampling

• Random sampling

• Stratified sampling

• Cluster sampling

In the context of sampling, what is the importance of a random sample?

• Ensures equal chance of selection

• Ensures biased selection

• Ensures convenience

• Ensures skewed selection

Experimenter bias happens when __________ expectations influence the __________ of a study.

• Participant's, outcome

• Researcher's, outcome

• Participant's, process

• Researcher's, process