Quasi-Experimental Research
Quasi-experimental research is a methodological design that incorporates some, but not all, of the essential features of a true experiment. While researchers using this approach may introduce a treatment or comparison condition, they frequently fail to use random assignment to place participants into distinct groups or omit counterbalancing to control for potential order effects. Consequently, while it offers more control than purely correlational studies, quasi-experimental research generally possesses lower internal validity than true experimental research.
0
1
Tags
Ch.2 Psychological Research - Psychology @ OpenStax
Psychology @ OpenStax
Introduction to Psychology @ OpenStax Course
OpenStax
OpenStax Psychology (2nd ed.) Textbook
Psychology
Social Science
Empirical Science
Science
KPU
Research Methods in Psychology - 4th American Edition @ KPU
Related
A researcher plans to investigate a cause-and-effect relationship by using a study design that requires them to create different groups by directly assigning participants to possess a certain characteristic or experience a specific condition. Which of the following research questions would be impossible to investigate using this specific type of design?
Quasi-Experimental Research
What is the primary reason a researcher might be forced to investigate a psychological relationship using nonexperimental approaches rather than a true experiment?
Types of Experimental Research
Basic Experimental Design Components
Interpreting Experimental Findings in Psychology
Reporting Research in Psychology
Weakness of Experimental Research: Artificial Settings
Ethical Constraints in Experimental Research
The Core Aim of Experimental Research
Primary Strength of Experimental Research: Establishing Causality
A researcher wants to test if a new note-taking strategy improves exam performance. They teach the new strategy to their morning class and the traditional strategy to their afternoon class. At the end of the unit, the morning class scores significantly higher on the exam. The researcher concludes that the new strategy causes better exam performance. Which of the following statements best analyzes the validity of this conclusion?
Falsifiability
Example of an Experiment: Lighting and Worker Productivity
Field Experiment
Experiment
Inability to Manipulate Variables
Experimental Record Keeping
Non-Experimental Research
Quasi-Experimental Research
Comparison of Internal Validity Across Research Designs
Applications of Surveys
Laboratory Experiment
Single-Subject Research
Match each component of experimental research with its specific role or function in the study design.
Conditions for Non-Experimental Research
Correlational Research
Longitudinal Research
Cross-Sectional Research
Example of Non-Experimental Research: Traffic Fatalities
Example of Non-Experimental Research: Intersection Observation
Complementary Use of Experimental and Non-Experimental Research
Observational Research
Quasi-Experimental Research
Comparison of Internal Validity Across Research Designs
Applications of Surveys
What is the defining characteristic of non-experimental research?
Learn After
Example of a Quasi-Experimental Study: Sex and Spatial Memory
One-Group Posttest Only Design
One-Group Pretest-Posttest Design
Nonequivalent Groups Design
Example of a Quasi-Experimental Study: Anti-Bullying Program
Selection Effect
Comparison of Internal Validity Across Research Designs
Tuskegee Syphilis Study
Elimination of Directionality Problem in Quasi-Experiments
Applications of Quasi-Experimental Research
Causal Limitations of Quasi-Experimental Research
Which of the following is a key characteristic that distinguishes quasi-experimental research from a true experiment?