A correlation of r = -0.90 means that there is essentially no consistent relationship between X and ...

A correlation of r = -0.90 means that there is essentially no consistent relationship between X and Y.
 
  a. True
  b. False
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The fundamental threat to internal validity in the regression-discontinuity design is selection.
 
  a. True
  b. False
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In paired associate learning, pairs of unrelated items are presented together during a study phase.
 
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A Pearson correlation of r = -1.00 means that all the data points fit perfectly on a straight line.
 
  a. True
  b. False
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The fundamental threat to internal validity in the nonequivalent groups design is selection.
 
  a. True
  b. False
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The terms implicit memory and episodic memory mean the same thing.
 
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For a positive correlation, decreases in X tend to be accompanied by decreases in Y.
 
  a. True
  b. False
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The most commonly used quasi-experimental design is the regression-discontinuity design.
 
  a. True
  b. False
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Ebbinghaus used the savings score to indicate memory retention for a list of previously learned nonsense syllables.
 
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If decreases in the X variable are accompanied by decreases in the Y variable, then the correlation between X and Y is negative.
 
  a. True
  b. False
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