Four different studies A, B, C, and D) were conducted and a summary of the results is given in the following table.
$$\begin{array} { c c c c c }
\text { Study } & d f & t \text { value } & p \text { value } & \text { Effect size } \
\hline \text { A } & 8 & 2.306 & 0.05 & 1.8 \
\text { B } & 12 & 1.356 & 0.20 & 0.3 \
\text { C } & 20 & 2.528 & 0.02 & 0.6 \
\text { D } & 30 & 1.697 & 0.10 & 0.6
\end{array}$$
-Which of the studies A, B, C, or D) had the most statistically significant difference between the two groups?
A) Study B
B) Study D
C) Study A
D) Study C

Question

Four different studies A, B, C, and D) were conducted and a summary of the results is given in the following table. 
$$\begin{array} { c c c c c } 
\text { Study } & d f & t \text { value } & p \text { value } & \text { Effect size } \
\hline \text { A } & 8 & 2.306 & 0.05 & 1.8 \
\text { B } & 12 & 1.356 & 0.20 & 0.3 \
\text { C } & 20 & 2.528 & 0.02 & 0.6 \
\text { D } & 30 & 1.697 & 0.10 & 0.6
\end{array}$$
-Which of the studies A, B, C, or D) had the most statistically significant difference between the two groups?
A) Study B
B) Study D
C) Study A
D) Study C

Quizplus · Accepted Answer

Study C has the lowest p-value (0.02), indicating the most statistically significant difference between the two groups.

Four Different Studies A, B, C, and D) Were Conducted