Metacognitive Performance, the Tip-of-Tongue Experience, Is Not Disrupted in Parkinsonian Patients

Table 3

Shrinkage factors (𝐸^𝛼 and 𝐸^2𝛼), confidence intervals (CI), inferential confidence intervals (ICI), _𝑒𝑅_𝑔^2𝛼, and Δ for metamemory performance.

	Do not know		Do not know correct		TOT number		TOT strength		Gamma
	PD	Elderly	PD	Elderly	PD	Elderly	PD	Elderly	PD	Elderly
M	.36	.39	.22	.23	.16	.12	12.00	13.37	.72	.75
SD	.22	.20	.12	.12	.11	.07	2.75	4.66	.44	.40
SE	.05	.04	.03	.03	.02	.01	0.61	1.04	.10	.10
E ^α	.69		.69		.70		0.70		.69
E^2 ^α	.69		.69		.71		0.71		.69
95% CI	.26–.46	.31–.48	.17–.28	.18–.29	.11–.21	.09–.15	10.72–13.28	11.19–15.55	.50–.93	.55–.95
95% ICI	.29–.43	.33 –.45	.18–.26	.19–.27	.13–.20	.09–.14	11.09–12.91	11.83–14.91	.57–.87	.61–.89
90% ICI	.31–.42	.34–.44	.19–.25	.20–.26	.13–.19	.10–.14	11.24–12.76	12.09–14.65	.60–.84	.63–.87
𝑒𝑅𝑔^2𝛼	.14		.07		.09		3.41		.27
Δ	.17		.11		.06		4.36		.40

Note: 𝑁=22 except that for TOT strength 𝑁=20 for the PD group and 𝑁=20 for the elderly group and for gamma, 𝑁=18 for the PD group and 𝑁=17 for the elderly group; 𝐸^𝛼 is based on 100(1−𝛼) and 𝐸^2𝛼 is based on (1−2𝛼); _𝑒𝑅_𝑔^2𝛼 is based on 90% ICI and Δ is based on 95% CI for the elderly group.