Exam 9: Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

When an investigator is confident that no carry-over effects will occur,which of the following designs is generally superior?

Between-subjects designs and within-subjects designs are both viable strategies only when the independent variable is experimental in nature.

A major goal of research design is to create alternative explanations.

One advantage of the between-subjects approach as compared with the within-subjects approach is that it is more economical in terms of the number of research participants.

The technique of matching to control for confounding in an experiment results in ____.

The advantage of including a control group when utilizing an experimental strategy is that it provides a _____ for evaluating the effects of the experimental manipulation.

Two important distributional assumptions are the _____ assumption and the _____ assumption.

The extent to which conclusions made on the basis of a statistical test are unaffected by violations of the assumptions underlying the test is called ____.

Which of the following statements is true of a control group?

If you have a small sample size what type of statistics should you use?

When studying the relationship between two variables,the investigator is essentially interested in determining how the different values of one variable are associated with the values of another variable.

The main difference between parametric & nonparametric statistics is that parametric statistics:

Which of the following variables would be an observed variable in all research strategies?

The ability to make a causal inference between two variables is a function of one's _____,not the _____ used to analyze the data.

What is a disturbance variable and how can they be controlled?

A ____________________is unrelated to the independent variable but affects the dependent variable.

In contrast to a(n)_____ strategy,an _____ strategy does not involve the process of actively creating values on an independent variable,but rather involves measuring differences in values that naturally exist in the research participants.

In practice,it is often difficult to identify appropriate variables to serve as a basis for matching,and,once identified,to readily complete the matching process.

Which of the following can influence a test of robustness?

One advantage of the within-subjects approach is that it is more _____ in terms of _____.