How are laboratory experiments subject to threats to validity?
A) Threats to internal validity are increased; threats to external validity are increased.
B) Threats to internal validity are increased; threats to external validity are decreased.
C) Threats to internal validity are decreased; threats to external validity are increased.
D) Threats to internal validity are decreased; threats to external validity are decreased.

Question

Quizplus · Accepted Answer

Correct C: Laboratory experiments,because of better control,have stronger internal validity but more threats to external validity.
Incorrect A: Laboratory experiments increase threats to external validity but lower them for internal validity.
Incorrect B: Laboratory experiments lower threats to internal validity.
Incorrect D: Because of control,laboratory experiments decrease threats to internal validity and increase them for external validity.

How Are Laboratory Experiments Subject to Threats to Validity