Luciana believes that practice makes perfect. To empirically test her belief, she conducts a study with two conditions. In one condition participants are asked to memorize a list of words after reviewing them only once. In another condition, they are asked to memorize a list of words, but are allowed to review them four times before being tested. If the results of Luciana's independent samples t-test revealed: t(50) = 5.07, p = .00, d = .73, what conclusion can she draw?
A) She is correct, practice does lead to better performance.
B) She is incorrect, practice does not lead to better performance.
C) There is no relationship between practice and performance.
D) She is incorrect, practice leads to worse performance.

Question

Quizplus · Accepted Answer

The t-test result (t(50) = 5.07, p = .00) indicates a statistically significant difference between the two groups, with a positive effect size (d = .73) suggesting that the group allowed to review the words more times (practice) performed better.

Luciana Believes That Practice Makes Perfect