A Meta-Analysis of the Results from 475 Studies Found That

question 21

True/False

A meta-analysis of the results from 475 studies found that the average person who received therapy shows more improvement than about 80% of similar people who were not in therapy.

Understand the limitations of designs lacking comparison groups, random assignment, or control groups and their effect on internal validity.

Differentiate between true experimental designs and quasi-experimental designs based on participant assignment and their impacts on research outcomes.

Understand the purpose and application of different control groups in research design.

Recognize the limitations and strengths of factorial designs in experimental research.

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Definitions:

Theory

A set of principles on which the practice of an activity is based or an explanation of the principles of phenomena.

Confirmation Bias

A cognitive bias that involves favoring information that confirms previously existing beliefs or biases.

Principle Of Falsifiability

The criterion for demarcating scientific from non-scientific statements; a theory must be testable and potentially able to be proven false.

Denialism

The choice to reject information or evidence that conflicts with an individual's beliefs, often seen in contexts such as climate change denial.