Confidence Intervals, Effect Size, and Statistical Power

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PSYC 354 Page 1 of 6 H OMEWORK 7 C onfidence Intervals, Effect Size, and Statistical P ower When submitting this file, be sure the filename includes your full name, course and section. Example: HW 7 _ JohnDoe _354B01 Be sure you have reviewed this module/ week’s lesson and presentations along with the practice data analysis before proceeding to the homework exercises. Complete all analyses in SPSS, then copy and paste your output and graphs into your homework document file. Answer any written questions (such as the text - based questions or the APA Participants section) in the appropriate place within the same file. Part I: Concepts Questions 1 – 8 These questions are based on the Nolan and Heinzen reading and end - of - chapter questions. Part I: Questions 1a - 1e Fill in the highlighted blanks with the best word or words. 1 - a ) The confidence interval is centered around the __ mean ______ of the sample. 1 - b ) Cohen's d measures the difference between means in terms of standard deviation _____ . 1 - c ) According to Cohen's conventions, a d value of _ 0.10 __ indicates a small effect. 1 - d ) A study that calculates the mean effect size from the individual effect sizes of many studies is called a(n) _ Meta analysis _______ . 1 - e ) Statistical power refers to the probability of successfully rejecting the _ null hypothesis _______ . Part I: Question s 2 - 5 End - of - chapter problems: Complete the following Nolan and Heinzen end - of - chapter exercises for Chapter 8 :
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