Summary
Summary Research Methods - Data Analysis I
- Course
- Institution
Summary of 1 pages for the course Research Methods In Psychology at UT
[Show more]
Seller
Followkayleighdebruin1
Reviews received
Content preview
RM - Unit 105 - Type I and Type II errorsBook: Analysing Data Using Linear Models
Chapter 2: 2.16
Chapter 2.16: Type I and type II errors
Type I error - the mistake of rejecting the null hypothesis, while it is true
Type II error - the mistake of not rejecting the null hypothesis, while it is not true
α - the relative frequency we allow ourselves to make a type I error
β - the relative frequency of making a type II error
Video: Type I error versus Type II error
Type I error is also called a false positive, type II error is also a false negative.
The goal of hypothesis testing is to reject a null hypothesis.
Example: There is this boy in the other class who you like. He likes you back but you do not ask him out.
This is a type I error, he did like you back but you assumed he didn’t; you rejected it while it was true.
Now you missed your chance.
Now you ask him out but he does not like you back. He has an older girlfriend.This is a type II
error, you assumed it was true while it was not. You wrongly invited him out. This is not as bad as a type
I error.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kayleighdebruin1. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $3.21. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52510 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now