Assertion A : Repeated measures ANOVA permits the researcher to determine the significance of mean differences on the same subjects over repeated trials.
Reason R : Repeated measures ANOVA is not used in testing designs where subjects are measured before, during and after the treatment.
In light of the above statements, choose the correct answer from the options given below
Assertion A Analysis
Assertion A states that Repeated Measures ANOVA allows researchers to determine the significance of mean differences for the same subjects across repeated trials or conditions. This is the fundamental purpose of Repeated Measures ANOVA (also known as within-subjects ANOVA). It is designed precisely to analyze data collected from the same participants at multiple time points or under different treatment variations.
Therefore, Assertion A is true.
Reason R Analysis
Reason R claims that Repeated Measures ANOVA is not used in testing designs where subjects are measured before, during, and after a treatment. This statement is incorrect. A common application of Repeated Measures ANOVA is precisely in analyzing data from such pre-test, intra-test, and post-test designs. The measurements taken at these different time points on the same subjects constitute the repeated measures.
Therefore, Reason R is false.
Conclusion
Based on the analysis:
- Assertion A is true.
- Reason R is false.
This aligns with the option stating that Assertion A is true but Reason R is false.
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