1. Correct the errors
Unfortunately, the data does not support our prediction.
The data do not support our prediction.

2. Correct the errors
In a study by Wheeler et al. (2003) they found that people could not ignore their own knowledge. Wheeler et al. (2003) found that people could not ignore their own knowledge.

3. Correct the errors
The stimuli was a large red star. The stimulus was a large red star. The stimuli were large red stars.

4. Correct the errors
The questions were given randomly to each student. The questions were presented in random order to each student.

5. Correct the errors
We should of used a larger amount of subjects. We should have used a larger number of participants. We should have used more participants.

6. Correct the errors
The subject’s score on Test 1 was compared with their score on Test 2. The participants’ scores on Test 1 were compared with their scores on Test 2.

7. Correct the errors
We found that skipping class effects students’ grades. We found that skipping class affects students’ grades.

8. Correct the errors
One problem with our study is that the subjects were all in an experimental design class. This could skew the results. One problem with our study is that the participants were all in an experimental design class. This might explain why we observed only a small difference between the “rehearsal” group and the “imagery” group. Because the students may have been exposed to information about memory in other psychology classes, they may have been more likely to try to capitalize on this information to improve their memories regardless of the experimental condition they were assigned to.

9. Correct the errors
This data can be used to conclude that a participant’s knowledge of the answers influenced the way they responded. These [or The] data show that participants’ knowledge of the answers influenced the way they responded.

10. Correct the errors
The study demonstrated that you make better decisions when your alert and awake.
The study demonstrated that people make better decisions when they are alert.