The phrase "an effect on test" is not correct in standard written English.
It seems to be missing a noun after "test" to clarify what kind of test is being referred to.
Example: "The new teaching methods had a positive effect on the test scores of the students."
Alternatives: "an impact on the test" or "a consequence for the test".
This may have had an effect on test outcomes".
They didn't care about anything unless it had an effect on test scores.
I'm fairly certain there is not an effect 2 Question 2. Which of the following additional pieces of information would be useful for determining if chocolate had an effect on test performance?
More information about what kind of chocolate was used 8 Question 3. If you could only choose one, which of the following additional pieces of information would be most useful for determining if chocolate had an effect on test performance?
Group assignment alone did not have an effect on test scores (p > 0.84), but intervention-arm subjects who completed all assigned cases answered an average of 3.2 more questions correctly on the post-test than others, controlling for pre-test scores (p = 0.003).
It was found that the occurrence of a thinning band on the test specimen of a formability test does not mean an effect on the test result.
As seen in Table 6, although no statistical difference was found between the other pairs, the results suggested that test contents might have had an effect on students' test performance.
It is too soon to see whether the policies will have an effect on state test scores, since this year's results will not be released until late spring.
Studies involving university and school students have shown that the number of years spent in education has an effect on their test performance (Astin 1999; Kleickmann et al. 2013; Riese and Reinhold 2012).
The non-normality of the data is not expected to have an effect on our tests for differences of the means.
