Class Notes (839,590)
Canada (511,419)
Psychology (492)
PSYC 1200 (230)
Lecture

Lecture 1c

2 Pages
111 Views

Department
Psychology
Course Code
PSYC 1200
Professor
Jason Leboe- Mcgowan

This preview shows 80% of the first page. Sign up to view the full 2 pages of the document.
Description
Lecture 1c Descriptive Statistics - Summarize large sets of results using central tendency Types of Central Tendency 1. Arithmetic Mean - Add up scores and divide by number of scores 2. Median - The score in the middle, if there are 2 then take their average 3. Mode - The score that occurs most often Measures of Variability  Extent scores differ from each other Range - Subtract the lowest score from the highest score Standard Deviation  How much scores different from mean  The higher the standard deviation is, the greater the variability among the scores Formula = (X-M)^2/N Steps for Finding Standard Deviation: 1. Calculate Mean 2. Calculate different between each score and mean, then square them 3. Add squared differences together 4. Divide by number of scores 5. Take square root of that value Inferential Statistics  Used to interpret the results Null Hypothesis - Statement saying the manipulated independent variable (IV) will not have an effect on the dependent variable (DV) Alternative Hypothesis - Statement saying the manipulated independent variable will have an effect on the dependent variable **Experiments rarely produce no difference** Issue is whether difference is large enough to warrant: 1. Rejection of Null Hypoth
More Less
Unlock Document

Only 80% of the first page are available for preview. Some parts have been intentionally blurred.

Unlock Document
You're Reading a Preview

Unlock to view full version

Unlock Document

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit