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*BLHS Research Methods

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Term
Definition and Example
show tendency to believe, after learning an outcome, that one would have foreseen it. Ex. The U.S. intelligence team should have seen Pearl Harbor and 9/11 coming.  
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critical thinking   show
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theory   show
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hypothesis   show
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show statement of procedures used to define research variables. Ex. Human intelligence is operationally defined as what an intelligence test measures.  
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replication   show
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show observation technique in which one person is studied in depth in the hope of revealing universal principles. Ex. Little Albert  
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survey   show
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show tendency to overestimate extent to which others share our beliefs and behaviors. Ex. Children raised in conservative households believe that others share their views and do not understand why others feel differently.  
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show all cases in a group. Ex. the student body here at Ben Logan would be considered a population.  
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random sample   show
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naturalistic observation   show
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show measure of extent to which two factors vary together. Ex. schools use ACT scores to correlate your academic success in college.  
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show graphed cluster of dots which represent the values of two variables. amount of scatter suggests strength of correlation.  
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illusory correlation   show
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experiment   show
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show procedure in which both research participants and staff are ignorant about whether the participants have received treatment or a placebo. Ex. new medication is being tested for effectiveness and none know if patients is given drug or not.  
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show results caused by expectations alone and not an active agent. Ex. a person with chronic fatigue given a sugar pill instead of actually medication and feeling better because of it.  
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experimental condition   show
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control condition   show
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show assigning participants to experimental and control conditions by chance. Ex. seperating an identical group into control and experimental randomly by assigning.  
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independent variable   show
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dependent variable   show
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show most frequently occurring scores in a distribution. Ex. 15, 17, 16, 15, 15 the mode is 15  
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mean   show
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median   show
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range   show
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show statistical statement of how likely it is that an obtained result occurred by chance. Ex. when sample averages are reliable and the difference between them is relatively large, we say the difference is this...likelihood that result will happen by chance.  
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culture   show
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