A researcher administers an achievement test to assess and indicate the…
2020
A researcher administers an achievement test to assess and indicate the possible effect of an independent variable in his/her study. The distribution of scores on the test is found to be negatively skewed. On this basis, what can be stated about the difficulty level of the test?
- A.
The test is very easy
- B.
The test is very difficult
- C.
The test is neither easy nor difficult
- D.
The test is easy and needs normalization
Attempted by 1 students.
Show answer & explanation
Correct answer: A
The correct answer is option 1: The test is very easy.
A negatively skewed, or left-skewed, distribution has a longer tail on the left side and most of the scores concentrated toward the higher end. In the context of test scores, this means most examinees scored high marks.
When most students obtain high scores, the test items are inferred to be easy for that group. Therefore, the difficulty level of the achievement test can be stated as very easy.