KINE 2049 Chapter Notes - Chapter 5: Predictive Validity, Construct Validity, Internal Validity
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Any resultant fact about the population that is being measured is called a parameter. Statistics: facts about a sample and they are estimates of parameters. In a list organized (alphabetically) choose every nth person for the study. Population divided into subgroups, and then random sampling occurs. The first x % of ppl to show up will be included in the study. Occur in magazine surveys, street corner surveys, tv surveys. Tv asks ppl to call in with their opinions on a topic. A characteristic that will exhibit diff. values under diff. conditions. Goal of research to understand how variables behave or react to diff conditions in the. Independent variables: those that are manipulated by the investigator. They decide the diff. levels of the variable to be investigated. Selection, manipulation, and measurements of variables allow researchers to explore the. Operational definition: formally defines the characteristics of a variable (independent or. Primary variance the effect of the independent variable.