AP PSYCHOLOGY

Detailed explanation-1: -In experimental research, random assignment is a way of placing participants from your sample into different groups using randomization. With this method, every member of the sample has a known or equal chance of being placed in a control group or an experimental group.

Detailed explanation-2: -A within-subjects design (also called within-group or repeated measures design) assigns each participant to all possible conditions. Advantages of within-subjects designs are the relatively lower cost and elimination of variability due to individual differences.

Detailed explanation-3: -In experimental research, some subjects are administered one or more experimental stimulus called a treatment (the treatment group ) while other subjects are not given such a stimulus (the control group ).

Detailed explanation-4: -Random assignment means that if there are groups or treatments in the experiment, participants are assigned to these groups or treatments, or randomly (like the flip of a coin). This means that no matter who the participant is, he/she has an equal chance of getting into all of the groups or treatments in an experiment.