Exercise 20
Exercise 20
1. Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her T score?
Patient 3 scored the highest. T score of 63
2. Which patient scored the lowest on postoperative CVLT Retrieval? What was this patient's T score?
Patient 4 scored the lowest. T score of 23
3. Did the patient in Question 2 have more of a memory performance decline than average on the CVLT Retrieval? Provide a rationale for your answer.
Yes, his decline was from 44 to 23, a 21 point drop. The average drop in T scores was 9.6 representing a decline of 20% from the baseline, patient 4 almost doubled the average decline.
4. What is the mean (overbar above X ) and standard deviation (SD) for preoperative T score for CVLT Acquisition?
Mean: 45.9
Standard Deviation: 5.2
5. Is the preoperative Retrieval T score for Patient 5 above or below the mean for the norm of the group? Provide a rationale for your answer.
Above the mean for the norm of the group. Patient 5 T score was 52, the mean for the norm of the group was 48.25. Patient 5 was 3 points above the mean.
6. Assuming that the distribution of the preoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?
X=47.8 SD= 5.8
47.8+ 5.8= 53.6
47.8-5.8= 42
Answer: (42, 53.6)
7. Assuming that the distribution of scores for the postoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?
X= 38.2 SD= 9.0
38.2+9.0= 47.2
38.2-9.0=29.2
Answer: (29.2, 47.2)
8. The researchers state that it appears that the functional integrity of the left temporal lobe, despite evidence of structural abnormality, plays a considerable role when it comes to memory outcomes following left ATL. Can the findings from this study be generalized to a larger population? Provide a rationale for your answer.
No, because the sample size is too small to generalize the results for a larger group of
1. Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her T score?
Patient 3 scored the highest. T score of 63
2. Which patient scored the lowest on postoperative CVLT Retrieval? What was this patient's T score?
Patient 4 scored the lowest. T score of 23
3. Did the patient in Question 2 have more of a memory performance decline than average on the CVLT Retrieval? Provide a rationale for your answer.
Yes, his decline was from 44 to 23, a 21 point drop. The average drop in T scores was 9.6 representing a decline of 20% from the baseline, patient 4 almost doubled the average decline.
4. What is the mean (overbar above X ) and standard deviation (SD) for preoperative T score for CVLT Acquisition?
Mean: 45.9
Standard Deviation: 5.2
5. Is the preoperative Retrieval T score for Patient 5 above or below the mean for the norm of the group? Provide a rationale for your answer.
Above the mean for the norm of the group. Patient 5 T score was 52, the mean for the norm of the group was 48.25. Patient 5 was 3 points above the mean.
6. Assuming that the distribution of the preoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?
X=47.8 SD= 5.8
47.8+ 5.8= 53.6
47.8-5.8= 42
Answer: (42, 53.6)
7. Assuming that the distribution of scores for the postoperative CVLT Retrieval T scores is normal, the middle 68% of the patients had T scores between what two values?
X= 38.2 SD= 9.0
38.2+9.0= 47.2
38.2-9.0=29.2
Answer: (29.2, 47.2)
8. The researchers state that it appears that the functional integrity of the left temporal lobe, despite evidence of structural abnormality, plays a considerable role when it comes to memory outcomes following left ATL. Can the findings from this study be generalized to a larger population? Provide a rationale for your answer.
No, because the sample size is too small to generalize the results for a larger group of