1. Defining Internal Validity and it
Another threat to internal validity is testing. This threat only occurs in the pre-post design which is where and pre-test and a post-test are given. ... This occurs when alternate forms of tests are given. ... This occurs when people from your sample drop out during the study. ... This may occur because some may have gotten lucky when taking the pretest and others may not have taken the test very seriously. ...
- Word Count: 722
- Approx Pages: 3
- Grade Level: High School