Measurement error refers to a. the results of mistakes made by ...

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Measurement error refers to
 
  a. the results of mistakes made by the examiner during the testing procedure.
  b. the mistakes made by the person taking a test.
  c. random variability in scores that is outside the control of the researcher.
  d. the variability in scores resulting from the manipulation of an independent variable.

Question 2

A stable trend within a phase is defined as a set of observations that ____.
 
  a. cluster around a horizontal line when graphed
  b. cluster around a vertical line when graphed
 c. cluster around a sloping line when graphed
 d. all have exactly the same magnitude

[IRincones]

Answer to Question 1

C

Answer to Question 2

c

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Gracias!

[diana chang]

Thanks for the timely response, appreciate it