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Lecture

Research Statistics Lecture November 25.docx

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Department
Psychology
Course
PSYC 2040
Professor
Dan Yarmey
Semester
Fall

Description
Research Statistics Lecture November 25  FINAL • 20 multiple choice questions 20 marks • No penalty for guessing • Not strictly what we did in class, per say, not just memory, it’s understanding  • Know degrees of freedom, *** know t test degrees of freedom ***  • 50 marks write a write up using spss output o Make tables and figures (1 of each)   Legends, titles, labels, all correct   Proper APA format  • NO HAND CALCULATIONS o NO split plot  • Know standard error, how it is different from standard deviation, what is standard  deviation  • No d values, no square roots, no squaring numbers • Best way to practice is to go back and try to rewrite from scratch all minor and  major assignments • LOOK AT KEYS ON COURSELINK • Know what the output looks like for each test  FINAL REVIEW 1) Hypothesis Testing Difference Between Means a) t­test 1 group vs. a constant  2 groups 1 DV, 1 IV with 2 levels Independent and correlated 1 sided/2 sided (1 tailed/2 tailed)         b) one­way ANOVA – are these means the same or not?  1 DV, 1 IV  with > 2 levels IV is independent or between groups  b) CRF 1 DV, 2IV’s with 2 or more levels IV’s are independent groups       d)        e) Post hoc tests Investigate pairwise differences among means of a significant IV with >2 levels Concentrated on Tukey HSD Simple main effects Chi square subsets  Chi Square • Relationship between 2 nomial variables • No distinction between IV and DV Correlation (Pearson product moment) • Relationship between 2 continuous variables • No distinction between IV and DV Multiple Regressions • Predicting 1 DV from 1 or more IV’s 
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