Table 4.

The association between within-person variation in objective cognitive function and momentary self-reported cognitive function (criterion variable) adjusted for Group ^†

	Effect estimate	SE	95% CI	p
Within-person variation in processing speed: symbol search task mean response time
Intercept	48.10	2.43	43.33, 52.87	<0.001
Session number	0.03	0.04	−0.05, 0.12	0.43
Person-centered mean response time	0.006	0.001	0.004, 0.007	<0.001
Group	−31.31	3.15	−37.48, −25.13	<0.001
Within-person variation in processing speed: symbol search task median response time
Intercept	48.08	2.44	43.30, 52.86	<0.001
Session number	0.04	0.04	−0.05, 0.12	0.42
Person-centered median response time	0.006	0.001	0.004, 0.008	<0.001
Group	−31.31	3.15	−37.49, −25.13	<0.001
Within-person variation in processing speed: symbol search task standard deviation of response times
Intercept	49.13	2.41	44.41, 53.85	<0.001
Session number	−0.03	0.04	−0.11, 0.05	0.51
Person-centered SD of response times	0.003	0.001	0.002, 0.005	<0.001
Group	−31.32	3.15	−37.49, −25.14	<0.001
Within-person variation in working memory: dot memory task – mean error
Intercept	49.50	2.41	44.77, 54.22	<0.001
Session number	−0.04	0.04	−0.12, 0.04	0.29
Person-centered mean error	−0.10	0.41	−0.91, 0.71	0.80
Group	−31.45	3.15	−37.63, −25.28	<0.001
Within-person variation in working memory: dot memory task – maximum error
Intercept	49.53	2.41	44.80, 54.25	<0.001
Session number	−0.05	0.04	−0.12, 0.03	0.27
Person-centered maximum error	−0.16	0.23	−0.61, 0.28	0.47
Group	−31.46	3.15	−37.63, −25.28	<0.001
Within-person variation in working memory: dot memory task – standard deviation of errors
Intercept	49.53	2.41	44.80, 54.26	<0.001
Session number	−0.05	0.04	−0.12, 0.03	0.27
Person-centered SD of error	−0.48	0.48	−1.41, 0.45	0.31
Group	−31.46	3.15	−37.63, −25.28	<0.001

^†Reference group: FM