New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

PSY 124: Behavioral Research Variability

by: Layne Franklin

PSY 124: Behavioral Research Variability PSY 124 - 03

Marketplace > University of Indianapolis > Psychlogy > PSY 124 - 03 > PSY 124 Behavioral Research Variability
Layne Franklin
GPA 2.9

Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes will cover some of the material that will be on the exam.
Fndtns/Psyc Science I:Methods
Jordan Sparks Waldron
Class Notes
research methods in psychology
25 ?




Popular in Fndtns/Psyc Science I:Methods

Popular in Psychlogy

This 2 page Class Notes was uploaded by Layne Franklin on Monday February 8, 2016. The Class Notes belongs to PSY 124 - 03 at University of Indianapolis taught by Jordan Sparks Waldron in Fall 2015. Since its upload, it has received 17 views. For similar materials see Fndtns/Psyc Science I:Methods in Psychlogy at University of Indianapolis.

Similar to PSY 124 - 03 at UIndy


Reviews for PSY 124: Behavioral Research Variability


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 02/08/16
Behavioral Variability in Research Behavioral Variability. ◦ The degree to which scores in a set of data differ or vary from one another. Psychology and the Behavioral Sciences involve the study of Behavioral Variability. ◦ Behavior varies across situations. ◦ Behavior varies among individuals. ◦ Behavior varies over time. Variance: A numerical index of the variability in a set of data -> tells us how much scores differ from a central number Standard deviation: Square root of the variance Advantages over range: Takes into account ____ when calculating variability in a set of data Distributions with High Behavioral Variability ◦ Scores will be spread out around the mean. ◦ Variance will be high. Distributions with Low Behavioral Variability ◦ Scores will cluster around the mean. ◦ Variance will be low. Systematic Variance ◦ Variability in participants’ behavior that is related to the variables of interest. Error Variance ◦ Unaccounted for Variance; Variance due to other factors. Total Variance ◦ Systematic Variance + Error Variance Distinguishing between systematic and error variance. ◦ Statistical Analyses ◦ How much of the variance is systematic vs. error? ◦ Is the amount of systematic variance large enough to conclude the effect is real? Error variance masks the relationship between the variables. ◦ Individual Differences ◦ Error in Research Reducing Error Variance ◦ Experimental Control, Standardization of Protocol, Homogeneity Among Participants Proportion of Systematic Variance = .00 ◦ 0% of variance is due to variables under study. Proportion of Systematic Variance = 1.00 ◦ 100% of variance is due to variables under study. Effect Size ◦ Measures the strength of associations. ◦ Cohen’s d, Eta-Squared, Correlation, Odds Ratio


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Jim McGreen Ohio University

"Knowing I can count on the Elite Notetaker in my class allows me to focus on what the professor is saying instead of just scribbling notes the whole time and falling behind."

Amaris Trozzo George Washington University

"I made $350 in just two days after posting my first study guide."

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.