# Answers to the t-score question

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1. Patient 3 had the highest score on the preoperative CVLT Acquisition. The T score for the patient was a 63(see Table 2).

2. Patient 4 had the lowest score on postoperative CVLT Retrieval. The T score for the patient was a 23(see Table 2)

3. Patient 4 had a 21-point decline from before and after surgery while the average in the CVLT Retrieval T score was 9.6.Thus, patient 4 had more of a memory performance decline than average CVLT Retrieval, which was actually more than twice of the average CVLT Retrieval.

4. The mean for preoperative T score for CVLT Acquisition is 45.9 and the standard deviation of the same is 5.2

5. The preoperative Retrieval T score fir patient 5 is 52 while the mean preoperative Retrieval for the norm of the group is 47.8 so the patient’s T score is above.(see Table 2 and 3)

6. Formula for 68% of the score for a distribution is

±SD

=47.8SD= 5.8

47.8±5.8

So68% of the scores for the preoperative CVLT Retrieval were between(42, 53.6)

1. Formula for 68% of the score for a distribution is

±SD

=38.2SD= 9.0

38.2±5.8

So68% of the scores for the postoperative CVLT Retrieval were between(29.2, 47.2)

1. No. The findings from this study cannot be generalized to a larger population. This is because the small sample size used restricts the generalization of the study findings as outlined in the introductory part.

1. Raw score=30 with Mean=38.2 and SD=9.0

Sothe patient’s CVLT Retrieval score will be given by

(10*30)/9+ (50-(10*30/9))

(33.33+16.67)=49.997

1. No. The average postoperative memory decline among CVLT Retrieval T score was 38.2 which was lower compared to that of CVLT Acquisition T scores which was 39.0(see Table 3)

References

Aron,A., Aron, E., &amp Coups, E. J. (2007).&nbspStatisticsfor the behavioral and social sciences: A brief course.Prentice Hall.