blackstorm8196 blackstorm8196
  • 10-07-2020
  • Social Studies
contestada

If we choose participants in such a way that our groups are not equal before the experiment, we have which of the following threats to internal validity?
A. Selection
B. History
C. Testing
D. Maturation

Respuesta :

CaduCozac
CaduCozac CaduCozac
  • 10-07-2020

Answer:

A

Explanation:

Since your selection was poor, that is what is threatening the final results.

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