Threat to the internal validity of an experiment
Which one of the following is not a threat to the internal validity of an experiment?
| maturation | ||
| regression effect | ||
| random error | ||
| mortality
|
An experiment in which extraneous variables are controlled is said to be
| internally reliable | ||
| internally valid | ||
| externally valid | ||
| externally reliable |
Using a convenience sample instead of a random sample of subjects is a threat to which kind of validity?
| internal | ||
| external | ||
| construct | ||
| statistical |
Any bias in selecting subjects for an experiment threatens the ____ of the experiment.
| internal validity | ||
| internal reliability | ||
| statistical validity | ||
| statistical reliability |