Assertion: experiment | /r/HasProperty | valid
Facets:
value: in a highly controlled situation
type: LOCATION
Source sentences:
text: For the experiment to be valid, your observations need to be likely to be different from your prediction if your hypothesis is wrong.
text: When the desire is to test a hypothesis that works "in general", an experiment may have a great deal of internal validity, in the sense that it is valid in a highly controlled situation, while at the same time lack external validity when the results of the experiment are applied to a real world situation.