Which patient scored the highest on the preoperative CVLT Acquisition? What was his or her T score?
The highest T score on the preoperative CVLT Acquisition is 63 (Patient #3).
Which patient scored the lowest on postoperative CVLT Retrieval? What was this patient’s T score?
The lowest postoperative CVLT Retrieval T score is 24 (patient #14).
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.
The average T-score on the CVLT Retrieval is 38.2, that is higher than 24. Hence, the patient in Question 2 have more of a memory performance decline than average on the CVLT Retrieval.
What is the mean and standard deviation for preoperative T score for CVLT Acquisition?
Mean=45.9SD=5.2
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.
The preoperative Retrieval T score for Patient 5 is 52. The mean of the group is 47.8. Hence, the preoperative Retrieval T score for Patient 5 is above the mean for the norm of the group.
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?
Calculate:
X±SD47.8±5.847.8-5.8=4247.8+5.8=53.6
The middle 68% of the patients had T scores between 42 and 53.6
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±SD38.2±938.2-9=29.238.2+9=47.2
The middle 68% of the patients had T scores between 29.2 and 47.2
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.
The study really showed 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. However, as it was stated in the introduction, the small sample size restricts the generalization of the study findings.
If a patient had a raw score = 30, what would his/her postoperative CVLT Rerieval T score be?
T=10*309+50-10*38.29=40.89
Did patients demonstrate more postoperative memory declines among CVLT Retrieval T scores than CVLT Acquisition T scores? Provide a rationale for your answer.
Yes, they did. The preoperative CVLT Retrieval mean score was 45.9 and postoperative was 39, while the retrieval mean score was 47.9 before operation and 38.2 after. So, there was more decline in Retrieval group.
