Research Design Flashcard

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What is external validity?

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External validity refers to the extent to which the results of a study can be generalized to, or have relevance for settings, people, times, and measures other than the ones used in the study.

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What does a main effect indicate in a study?

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A main effect shows the overall impact of the independent variable on the dependent variable, indicating how changes in the independent variable affect the dependent variable.

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In a 2 × 4 factorial design, how many independent variables are there?

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There are 2 independent variables in a 2 × 4 factorial design.

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What characterizes quasi-experiments?

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Quasi-experiments do not use random assignment to groups, which can affect the internal validity of the study.

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What is direct replication in research?

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Direct replication involves repeating a study using the same methods and procedures with a new sample to see if the original findings can be reproduced.

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What is construct validity?

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Construct validity refers to whether a test or tool accurately measures the theoretical construct it is intended to measure.

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What is internal validity?

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Internal validity refers to the degree to which a study accurately establishes a causal relationship between the independent and dependent variables.

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What is statistical validity?

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Statistical validity refers to the extent to which the statistical conclusions drawn from a study are accurate and reliable.

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What is the difference between direct and conceptual replication?

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Direct replication repeats the exact study with new participants, while conceptual replication tests the same hypothesis using different methods or measures.

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What is an independent variable?

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An independent variable is the variable that is manipulated or controlled in an experiment to test its effects on the dependent variable.