7 Below are data showing the results of six subjects on a me

7. Below are data showing the results of six subjects on a memory test. The three scores per subject are their scores on three trials (a, b, and c) of a memory task. Are the subjects get-ting better each trial? Test the linear effect of trial for the data. a. Compute L for each subject using the contrast weights -1, 0, and 1. That is, compute (-1)(a) + (0)(b) + (1)(c) for each subject. b. Compute a one-sample t-test on this column (with the L values for each subject) you created. (a) L1 = 3, L2 = 5, L3 = 3, L4 = 6, L5 = 5, L6 = 0 (b) t = 11/3-0/1.284/root 6= 6.995

Solution

thus answer is 22.

t value = 6.995 given

df = 6-1 =5

Hence p value = The P-Value is 0.00092. The result is significant at p < 0.05.

Hence L values can be taken as given i.e. L1 = 3, ...L6 =0

as the difference is not statistically significant.

a	a*L	b	L	c	L
4	-4	6	0	7	7
3	-3	7	0	8	8
2	-2	8	0	5	5
1	-1	4	0	7	7
4	-4	6	0	9	9
2	-2	4	0	2	2
	-16		0		38	22