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Table 7 Toronto Cognitive Assessment (TorCA) test–retest results

From: The Toronto Cognitive Assessment (TorCA): normative data and validation to detect amnestic mild cognitive impairment

TorCA index

Test 1 mean (SE)

Test 2 mean (SE)

Test 2–Test 1 mean difference (SED)

t(27) (p value)

Stability (p value)

% change

Orientation

11.2 ± 0.2

11.3 ± 0.2

0.1 ± 0.2

0.5 (0.631)

0.10

(0.607)

0.1

Memory—Immediate Recall

19.5 ± 0.7

21.9 ± 0.7

2.8 ± 0.5

4.6

(0.0001)

0.73

(0.0001)

14.3

Memory—Delayed Recall

15.8 ± 0.9

17.5 ± 0.8

1.7 ± 0.5

3.4

(0.002)

0.83

(0.0001)

10.7

Memory—Delayed Recognition

20.2 ± 0.2

20.4 ± 0.2

0.2 ± 0.2

0.9

(0.363)

0.57

(0.001)

1.0

Visuospatial

28.6 ± 0.4

28.4 ± 0.4

− 0.2 ± 0.3

− 0.7

(0.5)

0.68

(0.0001)

0.7

Executive Controla

111.0 ± 1.2

112.0 ± 1.3

1.0 ± 1.3

0.9

(0.4)

0.52

(0.004)

1.0

Language

84.4 ± 1.3

83.1 ± 1.3

− 1.3 ± 0.9

− 1.4

(0.2)

0.75

(0.0001)

1.5

Sum

290.7 ± 3.2

294.0 ± 3.4

3.3 ± 1.4

2.4

(0.023)

0.92

(0.0001)

1.1

  1. Test 1 and Test 2 mean indices and test–retest correlations (test stability) expressed as Pearson r
  2. Interpretation of stability coefficients (Pearson r): very good, ≥ 0.90; good, 0.80–0.89; acceptable, 0.70–0.79; low, < 0.70
  3. SE standard error, SED standard error of the difference
  4. aWorking Memory/Attention/Executive Control