# REMS Chapter 8

 The flashcards below were created by user cindia10 on FreezingBlue Flashcards. involves collecting data to determine whether, and to what degree, a relationship exists between two or more quantifiable variables correlational research indicates the extent to which variables vary in a systematic way common variance refers to the probability that the results would have occured simply due to chance statistical significance a researcher attempts to gain insight into variables or factors that are related to a complex variable relationship study the most common technique uses the product moment correlation coefficient, usually referred to as the ____, a measure of correlation that is appropirate when both variables to be correlated are expressed as continuous data. Pearson r if the data for at least one variable are expressed as rank or ordinal data, the appropriate correlation coefficient to use is the rank difference, usually referred to as the _____ Spearman rho the reduction in correlation coefficients that tends to occur if the measures have low reliability. Attenuation the variable used to predict is called the ________ predictor the variable that is predicted is a complex variable called the _________ criterion an attempt to determine which of a number of variables are most highly related to the criterion variable prediction study An interesting characteristic of prediciton studies is ______, the tendency for the predicition to be less accurate for a group other than the one on which it was originally developed shrinkage Any predictive relation should be subject to ________ with at least one other group, and variables no longer found to be related to the criterion measure should be removed Cross- validation a variable that cannot be directly observed or controlled, can influence the link between predictor and criterion variables intervening variable Authorcindia10 ID40793 Card SetREMS Chapter 8 DescriptionREMS Chapter 8 Updated2010-10-09T04:22:45Z Show Answers