Research Design And Statistics Concepts Worksheet

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Issue:

Business

 

Written by:

Casey A

 

Date added:

January 23, 2015

 

Level:

University

 

Grade:

C

 

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3 / 573

 

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• Validity refers to the extent to which a test measures what we actually wish to measure.• Reliability has to do with the accuracy and precision of a measurement procedure.• Practicality is concerned with a wide range of factors of economy, convenience, and interpretability. If sound measurements are not used then the information is useless...
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If sound measurements are not used then the information is useless. Bea Hansen asked the questions to verify the statistical data being provided, because understanding the sources will provide the validity, reliability and practicality of the data. (Cooper & Schindler, 2003, p 231) Stratified Random Sampling When a population can be clearly divided into groups based on some characteristic, then stratified random sampling can be used to guarantee that each group is represented in the sample...
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