Ch 2: Research Methods and the Study of Life Span Development

About This Chapter

Watch these video lessons and learn about experimental research design, twin and adoption studies, and more. These engaging lessons are just a portion of our online study guide and video collection.

Development in Late Adulthood - Chapter Summary and Learning Objectives

Learn about how information is gathered in the process of understanding the psychology of the human life span. In this chapter, instructors go over surveys, interviews, and other data collection methods. You will be introduced to the scientific method, including how research works, what constitutes an ethical study, and the relevant vocabulary associated with this topic. At the end of this chapter, you should be able to:

  • Define scientific method
  • Understand various data-gathering methods
  • Understand how research data are interpreted
  • Name examples of various types of studies
  • Understand correlation and generalizability

Video Objective
Scientific Method Applications to Human Growth and Development Research Apply the steps of the scientific method to human growth and development research.
Data Collection Methods for Human Growth and Development Research Differentiate between verbal reports, observational methods, physiological experiments, and other means of data collection.
Surveys, Interviews, and Case Studies Understand the differences between surveys, interviews, and case studies.
The Experimental Research Design Define independent variable, dependent variable, control group, and other related terms; provide examples of experimental research design.
How to Interpret Correlations in Research Results Understand the difference between correlation and causation, and know how to interpret correlations.
Human Growth and Development Research Methods Recognize methods of experiments, including cross-sectional, longitudinal, correlational, cross-sequential, experimental, and case study methods.
Twin and Adoption Studies Define each study type; discuss some of the recent twin and adoption studies and their findings.
Issues Related to Generalizability Describe the issues that can influence the generalizability of your research findings, including sex, culture, ecological validity, and socioeconomic status.
Ethics of Psychological Experiments Discuss ethical considerations in psychological research, including the institutional review board, the ability to give informed consent, privacy, and deception.

7 Lessons in Chapter 2: Research Methods and the Study of Life Span Development
Test your knowledge with a 30-question chapter practice test
Scientific Method Applications to Human Growth and Development Research

1. Scientific Method Applications to Human Growth and Development Research

Human growth and development researchers utilize the scientific method as they attempt to explain how a person changes throughout their life. The following lesson will explore this process.

Data Collection Methods for Human Growth and Development Research

2. Data Collection Methods for Human Growth and Development Research

This lesson will help you understand and differentiate between the methods of data collection that can be used in human growth and development research.

The True Experimental Research Design

3. The True Experimental Research Design

You need to set up a true experiment to test a hypothesis and demonstrate a cause and effect relationship. This lesson will teach you how this is accomplished and when you are forced to use other research designs.

How to Interpret Correlations in Research Results

4. How to Interpret Correlations in Research Results

Perhaps the most common statistic you'll see from psychology is a correlation. Do you know how to correctly interpret correlations when you see them? This lesson covers everything you need to know.

Research Designs: Quasi-Experimental, Case Studies & Correlational Research Designs

5. Research Designs: Quasi-Experimental, Case Studies & Correlational Research Designs

The true experiment is not the only way to conduct research. This lesson will help you understand the use of quasi-experimental research designs, case studies, and correlational research.

The Relationship Between Population, Sample & Generalizability

6. 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.

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.

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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