Why Do Neither Matched Samples nor Matched Pairs Effectively Eliminate

question 166

Multiple Choice

Why do neither matched samples nor matched pairs effectively eliminate the possibility of a third-variable correlation?

• A)Each technique depends on the other;matched samples are studied first,followed later by matched pairs.
• B)Both techniques allow us to rule out a particular third variable as a causal agent,but not the possibility of other third variables.
• C)Both techniques fail to utilize random sampling.
• D)By eliminating specific third variables,cause-and-effect relations are artificially established.

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