A statistical analysis is internally valid if A)all t-statistics are greater than |1.96| B)the regression R² 0.05 C)the population is small, say less than 2,000, and can be observed D)the statistical inferences about causal effects are valid for the population studied

Question

A statistical analysis is internally valid if A)all t-statistics are greater than |1.96| B)the regression R² > 0.05 C)the population is small, say less than 2,000, and can be observed D)the statistical inferences about causal effects are valid for the population studied

Quizplus · Accepted Answer

Internal validity refers to the accuracy of the inferences that can be made about causal relationships between variables based on the statistical analysis. Therefore, it is essential to ensure that the statistical inferences made about these causal effects are only valid for the population studied, which is the case in option D. Options A and B are incorrect as they do not pertain to internal validity. Option C is also incorrect as the size of the population does not guarantee internal validity.

A Statistical Analysis Is Internally Valid If