KP290 Chapter Notes - Chapter 4: Validity, Repeated Measures Design, Quantitative Research
1 Nov 2018
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The purpose statement is the foundation for the design of your study. The design informs the methods of measurement and assessment as well as the statistical aliases that will be needed to answer the research questions and test the research hypothesis. Quantitative designs can be used to address descriptive, predictive, and explanatory research problems. The most important component of conducting a quantitative study is to ensure you are studying something meaningful and valuable and that you are actually measuring variables accurately and consistently. Validity is a term to re ect the degree to which we can have con dence in our conclusions based on the research we conduct. There are a number of di erent types of validity; logical validity, construct validity, internal validity, and external validity. Logical validity refers to the quality of researchers arguments and their application of theory to support the needs for the study and the appropriate interpretation of results.
