Question: _________________ Validity involves an experiment that is tightly controlled and has no systematic differences between the groups of subjects at the onset. Random Sample External

_________________Validityinvolves an experiment that is tightly controlled and has no systematic differences between the groups of subjects at the onset.

Random

Sample

External

Internal

__________________Validityevaluates whether or not theresults of the study can be applied to other individuals or other situationsother than those participating in the study.

External

Internal

Random

Sample

In atrue experiment, cause and effect can be indicated.

True

False

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