Page 13 - Microsoft PowerPoint - Type A & Type B Personalities
P. 13

random
                                  Reliable measures are replicable. They contain mainly







                                        or                          we then look for

                                        systematic













                                        little        (




                                        and true (real) score variation and little systematic or random  A test must first be proven reliable (it must measure




                                        variation     p             To determine exactly what it measures,










                                        score              “something” consistently).




                       Reliability     (real)  true  error.       
                       y                                                 validity evidence.
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