Any variable that you're not investigating that can potentially affect the outcomes of your research study.

the experimental design in which the same participants partake in each experimental condition

uses different participants for each condition of an experiment

a testable prediction of what will happen in a study. It's usually a statement about how two variables are related.

the process of using the same procedures and materials for each participant in your study. ensures that all participants have the same experience, which allows researchers to compare results.

a method of selecting participants for a study by dividing the population into subgroups and then randomly selecting participants from each subgroup

Each member of the population has a chance of being selected for the sample

Which is true about a field experiment?

Which is true about a lab experiment?

Repeating information to keep it in short-term memory

A way to move information from short-term memory (STM) to long-term memory (LTM). It involves connecting new information to what you already know (making it meaningful).