×

### Let's log you in.

or

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

×

or

by: Amy Turk

27

0

2

# Reporting Descriptive Data PSYC-31574-003

Marketplace > Kent State University > Psychlogy > PSYC-31574-003 > Reporting Descriptive Data
Amy Turk
KSU

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

×
Unlock Preview

Frequency distributions and variability. Notes for Exam 2.
COURSE
Research Methods In Psychology
PROF.
TYPE
Class Notes
PAGES
2
WORDS
CONCEPTS
Psychology, Survey, Sampling, Probability, Frequency Distributions
KARMA
25 ?

## Popular in Psychlogy

This 2 page Class Notes was uploaded by Amy Turk on Monday April 4, 2016. The Class Notes belongs to PSYC-31574-003 at Kent State University taught by Dr. Tanjeem Azad in Spring 2016. Since its upload, it has received 27 views. For similar materials see Research Methods In Psychology in Psychlogy at Kent State University.

×

## Reviews for Reporting Descriptive Data

×

×

### What is Karma?

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

Date Created: 04/04/16
REPORTING DESCRIPTIVE DATA ● Should be accurate, concise, and understandable Frequency Distributions ● Summarizes raw data by showing the number of scores that fall in each of several categories ● Simple frequency: ​number of participants who obtained each score ● Raw scores: a​rrange raw scores from lowest to highest ○ Count the frequency of each score ● Simple frequency distribution:​um of frequency of scores should total sample size in study ○ Histogram: frequency column on y-axis and scores on x-axis ■ Arrange from low to high ● Grouped frequency:​ subsets of scores ○ Ensure equal intervals ○ Same histogram format ● Mean: average ● Median: middle number ● Mode: most frequent number Measures of Variability ● Range: least useful ● Variance: ​average extent to which scores in a data set deviate from the mean (squared units, not easy to interpret) ● Standard deviation:​square root of variance (original units of data) ● Standard deviation and variance ○ On average, how far are scores from the mean? ○ High vs. low variability ● Normal distribution:normal curve ○ Most of the scores fall around the mean while fewer and fewer fall into the low and high end of the distribution ○ People are about average with only a few falling outside the norm ○ 68% are within 1 SD of the mean ■ 95% within 2 SD ■ 99% within 3 SD Skewed distributions ● Negative: most of the scores cluster at the higher end with a few outliers around the bottom ● Positive: most of the scores cluster at the lower end with a few outliers toward the top Z-Scores ● Identifies where a participant’s score falls in relation to the other participants ● Tells us how far a particular score is from the mean in standard deviation units Xi = participant’s score X = mean of the sample S = standard deviation of the sample

×

×

### BOOM! Enjoy Your Free Notes!

×

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."

Kyle Maynard Purdue

#### "When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the material...plus I made \$280 on my first study guide!"

Bentley McCaw University of Florida

Forbes

#### "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

#### STUDYSOUP CANCELLATION 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 support@studysoup.com

#### STUDYSOUP REFUND POLICY

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: support@studysoup.com

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 support@studysoup.com