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                                          i
                                  Observed score = (true score + error)














                                                                                         )
                                          t The goal is to maximize true score variance and


                                                        Reliability:    forms            Inter-rater (inter-judge)  (i
                                          i                                              jd
                                          i                                                      Internal consistency (Cronbach







                                          t
                       y                  i  l          5 Types of Reliability:  of  Test-retest  Equivalent forms  alent
                       Reliability       Th    minimize error.  Types  5        i  Eq      Split-Half    I    
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