AP PSYCHOLOGY

Detailed explanation-1: -Repeated measures design is a research design that involves multiple measures of the same variable taken on the same or matched subjects either under different conditions or over two or more time periods. For instance, repeated measurements are collected in a longitudinal study in which change over time is assessed.

Detailed explanation-2: -While not ideal, there are times when we might not have an alternative to this quasi-experimental design. Repeated-measures designs offer the same range of designs as between-groups designs, including two or more IVs (or pseudo-IVs) and two or more levels of each independent variable.

Detailed explanation-3: -In a repeated measures design, each group member in an experiment is tested for multiple conditions over time or under different conditions. For example, a group of people with Type II diabetes might be given medications to see if it helps control their disease, and then they might be given nutritional counseling.

Detailed explanation-4: -The repeated measures ANOVA compares means across one or more variables that are based on repeated observations. A repeated measures ANOVA model can also include zero or more independent variables. Again, a repeated measures ANOVA has at least 1 dependent variable that has more than one observation.