Question

Marcos is testing how performance in video games affects aggression; he randomly assigns participants to play either an easy video game or a difficult video game. Some of his participants have never played video games before. This is an example of what type of variability?

unsystematic
systematic

Answer 1

Unsystematic Variability

Step-by-step explanation:

Variability

This refers to a number or measure of the observed differences in the value of a variable that is from one unit of observation to another unit.

Unsystematic variability

This is usually refered to as a type of variability that is unexplainable (not accounted for) for by a one or a known source, but that comes from effects or the combinations of extraneouss variables, measurement error, and noise.

They are the known differences in scores of individuals because of the variable that were not examined. They are usually not related to variables examined. Mostly type 11 error, are within groups variance in experiments and usually leads to high total variability.