Which of the following statements is/are correct about statistical significance with single-system data?
A)The absence of statistical significance means that the intervention was ineffective.
B)The presence of statistical significance means that the intervention's effects were meaningful.
C)The presence of statistical significance means that design flaws can be ruled out as the explanation for the improved outcome.
D)None of these.

Question

Quizplus · Accepted Answer

Statistical significance is not as straightforward in single-system designs as it is in group designs. The absence of statistical significance does not necessarily mean that the intervention was ineffective, as other factors such as measurement error or individual differences could have affected the results. Similarly, the presence of statistical significance does not necessarily mean that the intervention's effects were meaningful, as small, clinically insignificant changes may still be statistically significant. Finally, the presence of statistical significance does not rule out design flaws as an explanation, as there may be other sources of bias or confounding variables that were not accounted for in the analysis.

Which of the Following Statements Is/are Correct About Statistical Significance