About This Chapter
Hypothesis Testing - Chapter Summary and Learning Objectives
Once a hypothesis is developed, it must be tested for validity. These video lessons examine the steps in a hypothesis test and various methods of conducting these tests. Our expert instructors show you about effect sizes and types of errors. Every lesson includes a short quiz that lets you assess your learning, and you can track your progress through your personalized Dashboard. This chapter covers topics including:
- Basic theory of hypothesis testing
- Process for testing for a mean
- Effect sizes
- Testing for two means from independent samples
- Testing for means for matched pairs and for proportions
|What is Hypothesis Testing? - Definition, Steps & Examples||Explore the theory and process of hypothesis testing.|
|Conducting Hypothesis Testing for a Mean: Process & Examples||See how to test for a mean.|
|Effect Size in Hypothesis Testing: Definition & Interpretation||Find out what effect size means.|
|Type I & Type II Errors in Hypothesis Testing: Differences, Lesson & Quiz||Examine type I and type II errors.|
|The Relationship Between Confidence Intervals & Hypothesis Tests: Lesson & Quiz||Study how confidence intervals relate to hypothesis tests.|
|Hypothesis Testing Large Independent Samples||Learn to test large independent samples for two means.|
|Hypothesis Testing Small Independent Samples||Learn to test small independent samples for two means.|
|Hypothesis Testing Matched Pairs||See how to test for means from matched pairs.|
|Hypothesis Testing for a Proportion||Find out how to test for proportions.|
|Hypothesis Testing for a Difference Between Two Proportions||Discover how to perform hypothesis tests for the difference between two proportions.|
1. What is Hypothesis Testing? - Definition, Steps & Examples
A proper hypothesis test consists of four steps. After watching this video lesson, you'll understand how to create a hypothesis test to help you confirm or disprove an assumption.
2. Conducting Hypothesis Testing for a Mean: Process & Examples
Read this lesson to learn how you can use hypothesis testing to test for a mean. Learn what conditions need to be met before you can use hypothesis testing to find the average for the test subject.
3. Effect Size in Hypothesis Testing: Definition & Interpretation
Watch this video lesson to learn what effect size is when used in hypothesis testing. Also learn what significance it has in your testing. Learn how your data affects the effect size.
4. Type I & Type II Errors in Hypothesis Testing: Differences & Examples
Watch this video lesson to learn about the two possible errors that you can make when performing hypothesis testing. You will see how important it is to really understand what these errors mean for your results.
5. The Relationship Between Confidence Intervals & Hypothesis Tests
Quantifying population information by testing a small sample is a marvelous mathematical invention. In this lesson, we explore the relationship between confidence intervals and hypothesis tests.
6. Hypothesis Testing Large Independent Samples
In this lesson, you're going to learn about hypothesis testing of large independent samples. You'll learn about the assumptions in such a hypothesis test, and we'll work through an example together.
7. What Are t-Tests? - Assessing Statistical Differences Between Groups
This lesson explores how a researcher may use a t-Test. In addition, simple to follow instructions will demonstrate how to manually complete a t-Test.
8. Hypothesis Testing Matched Pairs
Sometimes, data sets come paired. What does this actually mean, though? This lesson explains what matched pairs are and goes over an example of how hypothesis testing applies to them.
9. Hypothesis Testing for a Proportion
Data sets can be mutually exclusive. What that means is that the population will either be or answer one thing or another. In this lesson, we'll explore how hypothesis testing is applied in that situation.
10. Hypothesis Testing for a Difference Between Two Proportions
Have you ever wondered if there's a difference between two proportions or if it just seems that way? Take for example, the proportion of college graduates who smoke vs. the proportion of college dropouts who smoke? You can test for this using hypothesis testing to discover if there's a real difference or not.
11. What is a Chi-Square Test? - Definition & Example
This lesson explores what a chi-square test is and when it is appropriate to use it. Using a simple example, we will work on understanding the formula and how to calculate the p-value.
12. Analysis Of Variance (ANOVA): Examples, Definition & Application
In this lesson, we will explain the most common statistical procedure in the field of psychology, the analysis of variance (ANOVA), in a way that's easy to understand. Then test your knowledge with a quiz.
13. Using ANOVA to Analyze Variances Between Multiple Groups
This lesson explores what an analysis of variance, or ANOVA, is and how you as a researcher may use it to find the difference between multiple levels of the same variable without doing a ton of T-tests.
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