PSY 870: Module 3 Problem Set

A module-based problem set covering statistical and psychological research methods.

David Miller
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College of Doctoral Studies© 2013. Grand Canyon University. All Rights Reserved.PSY 870:Module3Problem SetGAF, Consumer Satisfaction, and Type of Clinical Agency (Public or Private)A researcher wants to know if mental health clients of private versus public service agenciesdiffer on Global Assessment ofFunctioning (GAF) scores and on Satisfaction with Services(Satisfaction).She has collected data for 34 clients from a private agency and for 47 clients of apublic agency.Directions:Use the SPSS data file forModule 3(locatedin Topic Materials) to answer the followingquestions:1.What isthe independent variablein this study?What are the dependent variables?The independent variable in this study is “Agency”. The dependent variables of thisstudy are “Global Assessment of Functioning (GAF)scores” and “Satisfaction”.2.The first step for the researcher will be to clean and screenthe data.Please do this fortheresearcher and report your findings.Be sure to check it for possible coding errors, as wellas complete the screening of thedata to see if the data meet assumptions for parametrictests.Did you find any errors that the researcher made when setting up the SPSS data file(check the variable view)?If so, what did you find? How did you correct it?The variable “Agency” is only to classify whether the client is from a private orpublic service agency. So this is measured in nominal scale. But in the given datasetit was mistakenly listed as a scale variable that can be identified in the “VariableView” of the sheet. So it can be changed to nominal in “Variable View” of the sheetto list it correctly.

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