Ch 10: Internal Validity in Research: Tutoring Solution

About This Chapter

The Internal Validity in Research chapter of this Research Methods in Psychology Tutoring Solution is a flexible and affordable path to learning about internal validity in research. These simple and fun video lessons are each about five minutes long and they teach all of the information involving internal validity in research required in a typical psychology research methods course.

How it works:

  • Begin your assignment or other research methods in psychology work.
  • Identify the internal validity in research concepts that you're stuck on.
  • Find fun videos on the topics you need to understand.
  • Press play, watch and learn!
  • Complete the quizzes to test your understanding.
  • As needed, submit a question to one of our instructors for personalized support.

Who's it for?

This chapter of our research methods in psychology tutoring solution will benefit any student who is trying to learn internal validity in research and earn better grades. This resource can help students including those who:

  • Struggle with understanding extraneous and confounding variables, threats to internal validity, how to control for extraneous variables, or any other internal validity in research topic
  • Have limited time for studying
  • Want a cost effective way to supplement their psychology learning
  • Prefer learning psychology visually
  • Find themselves failing or close to failing their internal validity in research unit
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  • Want to get ahead in psychology research methods
  • Don't have access to their psychology teacher outside of class

Why it works:

  • Engaging Tutors: We make learning internal validity in research simple and fun.
  • Cost Efficient: For less than 20% of the cost of a private tutor, you'll have unlimited access 24/7.
  • Consistent High Quality: Unlike a live research methods in psychology tutor, these video lessons are thoroughly reviewed.
  • Convenient: Imagine a tutor as portable as your laptop, tablet or smartphone. Learn internal validity in research on the go!
  • Learn at Your Pace: You can pause and rewatch lessons as often as you'd like, until you master the material.

Learning Objectives

  • Define internal validity in research.
  • Understand the difference between extraneous and confounding variables.
  • Describe the physical variables, researcher variables and participant variables that affect internal validity.
  • Take a look at different factors that threaten internal validity.
  • Explain methods for controlling extraneous variables.

10 Lessons in Chapter 10: Internal Validity in Research: Tutoring Solution
Test your knowledge with a 30-question chapter practice test
What is Internal Validity in Research? - Definition & Examples

1. What is Internal Validity in Research? - Definition & Examples

The purpose of most research is to show that one variable causes changes in another variable. But, what happens when other variables come into play? In this lesson, we'll explore the definition, importance and threats to internal validity.

Extraneous & Confounding Variables: Differences & Examples

2. Extraneous & Confounding Variables: Differences & Examples

What happens when something other than your independent variable is influencing the outcome of your study? In this lesson, we'll look at two types of variables that can affect an experiment: extraneous and confounding variables.

Physical Variables that Affect Internal Validity

3. Physical Variables that Affect Internal Validity

How might a researcher accidentally mess up the results of his or her study? In this lesson, we'll look at one type of extraneous variable that can change experimental results - physical or situational variables.

Researcher Variables that Affect Internal Validity

4. Researcher Variables that Affect Internal Validity

Scientists want only the independent variable to affect the outcome of their studies, but sometimes it is the things they do themselves that change the outcome. We'll look at three common researcher-related variables: researcher bias, selection bias, and researcher personality in this lesson.

Participant Variables that Affect Internal Validity

5. Participant Variables that Affect Internal Validity

Sometimes, participants in an experiment can change the outcome. In this lesson, we'll look at some of the extraneous variables caused by participants: self-selection bias, demand characteristics, and good-subject bias.

Threats to Internal Validity I: History, Instrumentation & Subject Mortality

6. Threats to Internal Validity I: History, Instrumentation & Subject Mortality

In research, there are many things besides the independent variable that can affect the dependent variable. In this lesson, we'll look at three of those things - history, mortality, and instrumentation - and what they mean to research.

Threats to Internal Validity II: Statistical Regression & Testing

7. Threats to Internal Validity II: Statistical Regression & Testing

If you're doing research, how do you know if one thing causes another? In this lesson, we'll look at some common threats to the internal validity of experiments, including testing effects and regression to the mean.

Threats to Internal Validity III: Selection, Maturation & Selection Interaction

8. Threats to Internal Validity III: Selection, Maturation & Selection Interaction

A major goal of research is to prove that one thing causes another thing. But there are some hurdles to being able to say that. In this lesson, we'll look at three threats to internal validity: selection, maturation, and selection interaction.

Controlling for Extraneous Variables: Single Blind, Double Blind & Placebo Methods

9. Controlling for Extraneous Variables: Single Blind, Double Blind & Placebo Methods

Sometimes researchers are confronted with extraneous factors that affect the outcome of their studies. In this lesson, we'll look at ways to control for these extraneous variables, including single-blind and double-blind studies and placebos.

Concurrent Validity: Definition & Examples

10. Concurrent Validity: Definition & Examples

This lesson will cover concurrent validity and illustrate the difference between concurrent and predictive validity. Then, you can test your new knowledge with a quiz.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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