Question


Paired Samples Test



Paired DifferencestdfSig. (2-tailed)
MeanStd. DeviationStd. Error Mean95% Confidence Interval of the Difference
LowerUpper
ELEVATED - LEVEL.0190.13714.3E-02-.0791.1171.4389.672
21 In the output, the value of .1371 stands for
a) the standard deviation of the pre-test scores.
b) the standard deviation of the post-test scores.
c) the standard deviation of the difference scores.
d) none of the above

Answer

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