A research article based on a t test for independent means reports a result as "t(28)= 4.21, p

Question

A research article based on a t test for independent means reports a result as "t(28)= 4.21, p < .01."
A)The result was statistically significant.
B)There were 30 participants in the study.
C)The t score was 4.21.
D)All of the above.

Quizplus · Accepted Answer

- Choice A is correct because the p-value is less than the alpha level of .01, indicating that the result is statistically significant.
- Choice B is incorrect as the number of participants is not explicitly stated, only that there are 28 degrees of freedom (which suggests there were 30 participants in total).
- Choice C is partially correct as the t score is indeed reported as 4.21, but it is not the only correct choice.

A Research Article Based on a T Test for Independent