Exam 11: Pre- and True Experimental Research Methods

Most threats to ____________________ are taken care of by the experiment's design, while most threats to _____________________ need to be taken care of by the designer of the experiment.

What is the proper order of the following designs if they are to be listed from the one with the least amount of control over variables to the most?

What is the difference between internal and external validity?

What type of threat to internal validity is associated with practice effects?

Which is a threat to external validity?

To what does the term internal validity refer?

Which design uses no control group and no random selection?

What is an example of a true experimental design?

Jim was coming down with a cold and decided to take his friend's advice and drink hot lemon juice with a dash of salt to help his throat. Jim's experimentation can be categorized as what type of research?

Which is a threat to internal validity?

What term is synonymous with internal validity?

True experimental designs are NOT characterized by ______________________________.

The experimental design that uses one group and a pretest and posttest is called ____________________.

Which will NOT help control for extraneous variables?

The experimental design that uses one group, a treatment, and a posttest is called ________________.

Besides randomization, which of the following is a technique used to equalize initial group differences?

Which of the following threats to external validity happens when subjects receive unintended treatments?

What does the term ANCOVA mean?

Which is a way to control extraneous variables?

In an experimental research study, which group does NOT receive treatment?