Exam 11: Validity of Research Results in Quantitative, Qualitative, and Mixed Research

Internal validity refers to the degree to which a researcher can accurately claim that a causal relationship exists between two variables.

If you have successfully addressed all the various validity issues pertaining to your mixed research study then you have achieved:

Dr. Kenji wants to determine whether his new phonics program helps children's reading comprehension. He gives a fifth grade class the program and also studies a second grade class that does not go through the program. He finds that the fifth graders read with better comprehension. The confounding variable in this research design is:

The tendency of scores that are well below the mean to move up toward the mean on retesting, and the tendency of scores that are well above the mean to move down toward the mean on retesting is called:

In his study, Joe used member checking as a strategy to ensure what type of validity?

A critical friend is a type of peer review focused on:

External validity in qualitative research:

Roger is concerned with generalizing the results of his study to and across different groups of people, settings, times, and treatments. His concerns revolve around:

A group of researchers conduct a study where children from particular classrooms are assigned to treatment or control conditions. After the study, the researcher finds out that the students in the control group are higher achievers than those in the experimental group. He found no treatment effect. The failure to find a treatment effect might be due to:

Validity that makes use of both the emic and etic viewpoints is called ______.

Treatment diffusion occurs when the researcher has not operationalized a concept completely.

Explain the meaning of confounding variables.

Richard has made predictions about the data he will collect for his research study. After his data are collected he compares them to his predictions. He does this to assess which type of validity?

Identify and explain the types of validity or trustworthiness used in qualitative research.

Name three threats to external validity and explain how they can be avoided.

Explain the role of operationalization of constructs in research.

In qualitative research, descriptive validity refers to:

What evidence is needed to conclude causality in research?

The results of Dr. Jarvis' study were replicated by three other teams of researchers. As a result Dr. Jarvis' study has:

To infer causality, three conditions must be met. One of them is that: