Chapter 1

# 2 correlational

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Unformatted text preview: icated 100 times. Usually we say that the probability of being wrong is 1.00 - .95 or .05 3. Analyze the data and draw conclusions. Two sets of normal curves representing data distributions Note the amount of overlap in the sets of normal curves Meta-analyses – a statistical way of combining the results of several experiments 4. Report the findings. Science can not progress if you are the only one who knows the results. And, your results have to be critically reviewed and replicated. Research findings must be replicable!!!!! 5. Relate the research results to the theory and possibly change the theory. Use the theory to generate additional hypotheses. Science is alive… constantly progressing. To be successful, you have to have a “program of research.” Approaches to Research (What, why, how): 1. Naturalistic-unobtrusive (without their knowledge) Jane Goodall Chimps tool use Observations of buyer behavior at a set of grocery stores. 2. Correlational - use of statistical procedures to assess the strength of the relationship between two variables. Bivariate Distributions Example: Variable 1 = Job performance Variable 2 = Score on an aptitude test Model from Personnel Psychology: Sport example: Batting average and Athletic Coping Skills Inventory. 3. Survey - well constructed properly worded questionnaires. SD D N A SA Spinach makes me feel alone 0 0 0 0 0 When I look down from a high place I want to spit 0 0 0 0 0 As a child, I was an imaginary playmate 0 0 0 0 0 But… Who responds ??? Sampling???? Also… Response Bias. One very popular survey procedure: Survey Monkey Case Studies- descriptions of interesting phenomena or people. Serial Killers: Eileen Wuornos Ted Bundy Multiple Personalities Feral children: www.youtube.com/watch?v=PR-cWZ4CChI Experimental Method: Experimental Research - do something under controlled conditions and see what happens. The experiment is the most powerful of our research procedures In an experiment, we change one variable and see what effect it has on another variable. Changing your gasoline: What is the performance (defined as MPG) using Brand 1 in Driving Situation 1: with AC, at speed limit. Then try Brand 2 in Driving Situation 1. Compare the MPG with Brand 1 vs. Brand 2. You could also compa...
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## This document was uploaded on 02/18/2014 for the course PYSC 107 at Texas A&M.

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