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Ch 21: Psychological Studies

About This Chapter

Review important information about psychological studies with this useful study guide chapter. These comprehensive resources can be used to boost your grades, prepare for upcoming exams or simply solidify your understanding of psychological experiments.

Psychological Studies - Chapter Summary

To review the basics of psychological studies, look no further than this collection of informative and engaging psychology lessons. Inside the chapter, you'll find compelling instruction that highlights the foundations of psychological experiments. Our instructors walk your through concepts such as research methodologies, ethical considerations, data analysis and internal validity. You'll also examine the role of the scientific method in psychological experimenting.

Studying these lessons can help you:

  • Explain the use of the scientific method in psychology
  • Identify research variables, tools and methodologies that are used in psychological experiments
  • Analyze an experiment's validity and reliability requirements
  • Understand the ways in which confounds can affect psychological experiments
  • Recognize ethical considerations for psychological experimenting
  • Assess proper data evaluation, hypothesis testing and types of research design
  • Describe a psychological experiment's use of population, sample, generalizability and inferential statistics
  • Know how researchers draw conclusions based on internal validity

Each lesson includes memorable examples and concise definitions to make your review process effective and enjoyable. Our expert instructors have an engaging teaching style and they're available to answer any questions you may have. Following each lesson is an interactive practice quiz to help you retain the information you've learned. This mobile-friendly and self-paced chapter also includes a convenient course Dashboard that tracks your progress and allows you to quickly jump to topics you want/need to study.

13 Lessons in Chapter 21: Psychological Studies
Test your knowledge with a 30-question chapter practice test
What Is the Scientific Method in Psychology? - Definition, Characteristics & Steps

1. What Is the Scientific Method in Psychology? - Definition, Characteristics & Steps

How might someone apply the scientific method to psychological research? We will review the steps of the scientific method and how they applied to one of the most famous psychological studies ever conducted.

Research Variables: Dependent, Independent, Control, Extraneous & Moderator

2. Research Variables: Dependent, Independent, Control, Extraneous & Moderator

This lesson explores the terminology of experimental design. What are variables? How do they influence each other? Is it possible that you are seeing connections that don't actually exist?

Psychological Research Tools: Observation, Measurement & Experimentation

3. Psychological Research Tools: Observation, Measurement & Experimentation

What are the primary ways a psychologist goes about conducting research? In this lesson, we will look at the three main ways a researcher can go about learning something, as well as some of the more famous psychological research that has used these techniques.

Research Methodologies: Quantitative, Qualitative & Mixed Method

4. Research Methodologies: Quantitative, Qualitative & Mixed Method

While there are many ways to conduct an experiment in psychology, there are only so many ways you can describe it. In this lesson, we will discuss the differences, strengths, and weaknesses of the qualitative, quantitative, and mixed methods.

Reliability & Validity in Psychology: Definitions & Differences

5. Reliability & Validity in Psychology: Definitions & Differences

How do validity and reliability contribute to study design in psychology? In this lesson, you'll look at how experiments can fail reliability and validity requirements to get an idea of the challenges behind conducting significant psychological research.

Confounds in Psychology: Definition & Concept

6. Confounds in Psychology: Definition & Concept

In this lesson, you will discover how several different factors, known as confounds, can influence the results of an experiment. You will also learn how researchers work to prevent confounds from ruining the validity of their study.

Ethics in Psychological Experiments: Importance & Examples

7. Ethics in Psychological Experiments: Importance & Examples

What are the ethical principles of psychological research? In this lesson, you'll take a look at the careful considerations a psychologist must make with respect to her participants when she designs a test.

Evaluating Data: Precision, Accuracy & Error

8. Evaluating Data: Precision, Accuracy & Error

The data you present as a scientist needs to be as accurate, precise and error-free as possible. In this lesson, we'll discuss what each of these terms means, as well as how error is introduced into measurements and other data collection.

Types of Research Design

9. Types of Research Design

There are questions to be answered in all areas of psychology. How are these questions answered by professionals in the field? This lesson covers several different options researchers can use to approach such questions.

The Relationship Between Population, Sample & Generalizability

10. The Relationship Between Population, Sample & Generalizability

Researchers try their best to gather a sample that represents their population. But why is this important? In this lesson, we'll look at the relationship between population, sample, and generalizability in research.

Hypothesis Testing: Comparing the Null & Alternative Hypothesis

11. Hypothesis Testing: Comparing the Null & Alternative Hypothesis

This lesson explores the process of comparing the null and the alternative hypothesis, as well as how to differentiate between the two after your testing is done.

Inferential Statistics for Psychology Studies

12. Inferential Statistics for Psychology Studies

Psychology is a science, which means that in order to understand people's thoughts and behaviors, a basic understanding of statistics is necessary. Most psychology studies use inferential statistics. This lesson covers basic types of inferential statistics, as well as how to decide whether a hypothesis was supported by the results.

Drawing Conclusions Based on Internal Validity

13. Drawing Conclusions Based on Internal Validity

When a researcher gets the results of their study back, how do they know that the independent variable caused the results? In this lesson, we'll look at how internal validity shapes the way researchers draw conclusions about their research.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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