Threat to the internal validity of an experiment

Reference no: EM13997546

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

Reference no: EM13997546

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