Exam 4: Quantitative Study Design

You are studying a group of individuals and have assigned them to an intervention group; however, there is no other group to compare to the intervention group. What type of experiment does this represent?

A wash-out period is important for which type of study design?

Define and discuss the importance of construct validity as it relates to reliability.

You are at the gym and are interested in determining the popularity of the treadmill machines versus the elliptical machines. As such, you decide to do a frequency count of the number of people using a treadmill compared to an elliptical. This is an example of what data collection tool?

What do non-experimental research designs often do?

A one-time case study involves completing an assessment before the intervention, being exposed to an intervention, and then assessing the outcome of interest.

During the process of designing a research study, you defend an argument for the importance of conducting the study and have provided a strong rational for the theory applied. What type of validity are you displaying?

You are asked to design a true experiment. What three research design characteristics would you be sure to incorporate?

Discuss how you could improve logical validity, construct validity, and reliability within your research study. Provide either questions you would ask yourself about the design, or steps you would take to improve logical validity, construct validity, and reliability.

You want to do a study on a group of physiotherapists. While you are visiting your physiotherapist, you ask if they could connect with their friends to participate in the study. What kind of sampling method is this?

Which statement is false regarding a repeated-measures design?

Most researchers aim to generalize their research findings to a population of people. However, it is unlikely to have access to the whole population of people due to a variety of reasons, such as demographics. The restricted group of people who can be connected to the study is called which of the following?

A common name for an experimental design is a randomized control trial.

Having a pre-test is an essential condition of a true experiment.

Discuss common extraneous variables in kinesiology research. Why is it important to control for these variables?

A pre-experimental design examines two groups of individuals and provides an intervention to both groups during the study.

Compared to other study designs quasi-experimental designs are usually higher on internal validity and lower on external validity.

A single-subjects design consists of which of the following?

You are studying two groups of people, which include university students and high school students. This could be an example of a quasi-experimental study design.

Discuss three threats to internal validity. Give an example of each kind of threat.