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killian killian
wrote...
Silver Member
Posts: 6024
9 years ago
A researcher tests a new antidepressant drug. The drug works, but not for the theoretical   
      reasons proposed in the researcher's hypothesis. The experiment lacks ______ validity.   
      a.   face                           c.   internal                        
      b.   construct                     d.   external
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Smiling Face with Open Mouth
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Answer accepted by topic starter
f_zah1f_zah1
wrote...
Top Poster
Posts: 10774
9 years ago
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