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by: Celia O'Hara

47

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2

# Introduction To Statistics In Psychology PSY 20100

Marketplace > Purdue University > Psychlogy > PSY 20100 > Introduction To Statistics In Psychology
Celia O'Hara
Purdue
GPA 3.93

Anthony Conger

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COURSE
PROF.
Anthony Conger
TYPE
Class Notes
PAGES
2
WORDS
KARMA
25 ?

## Popular in Psychlogy

This 2 page Class Notes was uploaded by Celia O'Hara on Saturday September 19, 2015. The Class Notes belongs to PSY 20100 at Purdue University taught by Anthony Conger in Fall. Since its upload, it has received 47 views. For similar materials see /class/207863/psy-20100-purdue-university in Psychlogy at Purdue University.

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Date Created: 09/19/15
PSY 201 Exam 2 Study Guide Study material for first exam and review all quizzes some questions from previous material will be on this exam New material includes Dispersion De nitions 7 variance standard deviation average deviation etc Properties of measures of dispersion especially the standard deviation Calculate measures of dispersion for a small set of scores Properties of transformed scores Properties of deviation score 2 score SAT T etc Are all z s normal Can they be made normal How are do you compare relative performance for distributions that have different means and variances Convert from one score metric to another e g from SAT to IQ Properties of normal curve All share same shape only difference is mean and standard deviation all are identical when changed to zscores Symmetrical unimodal bell shape Mean median mode Be familiar with how to use the normal table you do not need to bring your book to the exam Properties of correlations What is correlation how does it relate to causality Sign amp magnitude range ofpossible values What distributional characteristics in uence the correlation coef cient What happens to the correlation if you combine groups How does restriction of talent impact correlation Know what correlation to use for rank ordered data Probability De nitions use with discrete distributions continuous score distributions What are properties of probability Possible values What is the probability of A or B What is the probability of A then B Use the binomial distribution 7 Give properties use the following equation or parts thereof n1 k nrk kn k Sampling distribution of the mean De nition of sample population random sampling What is the distribution of sample means Mean of sample means Standard deviation of sample means Central limit theorem Use of sampling distribution of means What is the probability of obtaining a sample mean within a certain range of values see properties of normal curve

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