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Pscyh_7_NOTES_11_17_09-1 - Class 211ltoti3.1tlr ~Ubtnll...

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Copyright © 1996 ASUCSB Reproduction in any form is a violation of Federal Copyright Laws. .S. Notetaking • 893-4471 Open 10:00 - 4:00 Monday - Friday • Closed Finals Week Class Date 211ltoti3.1tlr ~Ubtnll ~oteta:hin!J $erbice Notetaker Psychology 7 11/17/09 Revlin . Lec;.Ht' \ S Next Exam 12/09/09 Page 1 of 5 ANNOUNCEMENTS OUTLINE OF LAST LECTURE XVIII Surveys (cont.) A. Types of samples B. Worrisome questions OUTLINE OF TODAY'S LECTURE XIX. Analyzing Data A. Inferential Statistics B. Null vs. Research Hypothesis C. t-test and Samples D. Effect Size TODAY'S LECTURE Analyzing Data The basic problem that a research has is deciding whether observed differences in the sample of participants reflect differences in the population asa whole. To evaluate data to answer this problem requires the use of inferential statistics rather than descriptive statistics. The latter describes the sample, the former assesses how likely the fmdings are if 100 samples or more from the population were used. Most research designs intended to provide evidence that one variable caused another
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