Chapter Two_ Research Methods in IO Psychology

Once the data are collected they can then be analyzed

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Unformatted text preview: icipants based on categories representing important distinguishing characteristics of a population. ◦ Once the data are collected, they can then be analyzed, the fifth step ◦ In most cases, data are analyzed using statistical analysis ◦ The final step of the research process is the interpretation of the results ◦ The researcher draws conclusions about the meanings of the findings and their relevance to actual work behavior as well as limitations. • Major Research Designs ◦ The experimental method is a research design characterized by a high degree of control over the research setting to allow for the determination of cause-and-effect relationships among variables. ‣ Independent Variable (IV) is the variable that is manipulated by the researcher using the experimental method, while the Dependent Variable (DV) is the variable that is acted upon by the independent variable; the outcome/measured variable • i.e.: Google Video = IV was the meet and greet with the manager DV employee productivity ◦ The treatment group (experimental group) is the group in an experimental investigation that is subjected to the change in the IV, while the control group that receives no treatment ◦ Extraneous variables (EVs) are variables other than the IV that may influence the DV ‣ i.e.: DV is employee productivity. EVs could include conflict at work, prior work knowledge, or lack of sleep ‣ The key to the success of the experimental method is to hold all EVs constant ◦ Random Assignment is a method of assigning subjects to groups to control for the effects of EVs • Location ◦ Laboratory experiment (CONTROL) ‣ researchers bring subjects to them ◦ Field experiment ‣ researchers are going into the subjects' personal setting • Quasi-Experiment ◦ In many cases, a researcher does not have control over the situation needed to run a true experiment. ‣ A "true experiment" is the only experiment that allows us to infer causal relationships. i.e.: worker productivity (DV) vs. temperature (IV) ◦ In some cases, a researcher may be unable to manipulate a variable due...
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