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PSY 420 Week One Class Notes

by: Samantha Bishop

PSY 420 Week One Class Notes PSY420

Marketplace > Lenoir-Rhyne University > Psychology > PSY420 > PSY 420 Week One Class Notes
Samantha Bishop

GPA 3.81

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About this Document

These notes were taken in class and cover a basic statistics review and and overview of psychological assessment.
Psychological Assessment
Dr. Gordon Cappelletty
Class Notes
Statistics, Psychological, assessment
25 ?




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This 2 page Class Notes was uploaded by Samantha Bishop on Saturday August 27, 2016. The Class Notes belongs to PSY420 at Lenoir-Rhyne University taught by Dr. Gordon Cappelletty in Fall 2016. Since its upload, it has received 9 views. For similar materials see Psychological Assessment in Psychology at Lenoir-Rhyne University.


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Date Created: 08/27/16
PSY 420 Week One Class Notes 8/23/16  Psychologists do assessments that answer a question dealing with a patient’s mental  and emotional state.  Theory drives assessment. Psychological test: objective and standardized measure of a sample of behavior. Let’s break it down: o Objective­to not have a subjective bias o Standardized­ behavior, instruments, scoring are all fixed so that we can compare  across time or people o Measure­ quantitative data (how much?) o Sample­ supplemental amount o Behavior­ anything a person does/says (oral, verbal, internal, physical, thoughts,  feelings) Components of a psychological assessment: 1. Individual’s history & background 2. Behavioral observations 3. Psychological tests/instruments  *All of these are focused on answering a question about an individual* 8/25/16 Basic Statistics Review  Descriptive Statistics 1. Univariate­ 1 variable a. Central tendency b. Variance and standard deviation c. Distribution 2. Bivariate­ 2 variables a. Correlation 3. Multivariate­ more than 2 variables a. Multiple regression UNIVARIATE  Central Tendency: Σx 1. Arithmetic mean­ sum divided by the total   (most preferred average) N 2. Median­ halfway point 3. Mode­ most frequent occurring score Σ(x−mean) 2  Variance:  s = N−1 √ s2  Standard Deviation:   Skew a. Negative skew­ when the mean is lower than the median b. Positive skew­ when the mean is bigger than the median 68% of individuals are within one standard deviation of the mean BIVARIATE  Correlation Coefficient:  (co)variance =r   geometricmean *if the r=0 then there is NO causal relationship between the two variables* Correlation range of  ­1.00 to +1.00 MULTIVARIATE  Multiple Regression: R= overall relationship = individual contribution


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