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Ch 11: External Validity: Tutoring Solution

About This Chapter

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

How it works:

  • Begin your assignment or other research methods in psychology work.
  • Identify the external validity 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 external validity and earn better grades. This resource can help students including those who:

  • Struggle with understanding generalization, threats to external validity, methods for increasing external validity, or any other external validity 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 external validity unit
  • Cope with ADD or ADHD
  • 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 external validity 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 external validity 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 external validity in research.
  • Understand why internal validity and replication are required for external validity.
  • Explain why generalization is essential to external validity.
  • Identify threats to external validity.
  • Describe methods for increasing external validity.

8 Lessons in Chapter 11: External Validity: Tutoring Solution
Test your knowledge with a 30-question chapter practice test
What is External Validity in Research? - Definition & Examples

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

The purpose of research is to say something about the real world. But how can a researcher generalize results to the world at large? In this lesson, we'll answer that question as we learn about external validity.

Requirements of External Validity: Internal Validity & Replication

2. Requirements of External Validity: Internal Validity & Replication

In order to generalize results from studies to the real world, there are a couple of things that are required. In this lesson, we look at the requirements for external validity: replication and internal validity.

Generalization & External Validity

3. Generalization & External Validity

The point of research is to be able to generalize findings to the world at large. In this lesson, we'll look at three types of generalizing that make up external validity: across subjects, from procedures to constructs, and beyond the lab.

Threats to External Validity: Sample Characteristics, Stimulus Characteristics & Experimental Arrangements

4. Threats to External Validity: Sample Characteristics, Stimulus Characteristics & Experimental Arrangements

The goal of research is to generalize the results, but there are several things that can get in the way. This lesson examines three threats to external validity: sample characteristics, stimulus characteristics, and multiple-treatment interference.

How Novelty Effects, Test Sensitization & Measurement Timing Can Threaten External Validity

5. How Novelty Effects, Test Sensitization & Measurement Timing Can Threaten External Validity

The purpose of research is to find things out about the world at large. But there are several things that can get in the way of external validity. In this lesson, we'll examine novelty effects, test sensitization, and measurement timing.

Reactivity of Experimental Arrangements & Assessment: Threats to External Validity

6. Reactivity of Experimental Arrangements & Assessment: Threats to External Validity

The goal of research is to say something about what happens in the real world. But what happens if subjects react to the experimental conditions? In this lesson, we'll look at two reactivity threats to external validity.

Methods for Increasing External Validity

7. Methods for Increasing External Validity

External validity is a key component of research. In this lesson, we'll look at several different ways to increase external validity, including aggregation, nonreactive measures, and field research.

Ecological Validity in Psychology: Definition & Explanation

8. Ecological Validity in Psychology: Definition & Explanation

Ecological validity refers to the extent to which the findings of a research study are able to be generalized to real-life settings. Learn about ecological validity, how it differs from external validity, and more.

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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