Skip to main content
. 2020 Jun 26;6(1):e12043. doi: 10.1002/trc2.12043

TABLE 6.

Effect of testing environment, and first‐degree family history of dementia, on the primary outcome of each cognitive test

Effect of testing environment
Age Education Group Alone (n = 340) With others (quiet) (n = 433) With others (noisy) (n = 54)
(df) F P (df) F P (df) F P Mean (SD) Mean (SD) Mean (SD)
DET speed (1760) 37.01 <.001 (1760) 5.64 .018 (2760) 0.37 .691 2.54 (0.005) 2.55 (0.004) 2.55 (0.013)
IDN speed (1760) 54.62 <.001 (1760) 2.73 .100 (2760) 0.001 .999 2.69 (0.004) 2.70 (0.003) 2.70 (0.009)
OBK accuracy (1760) 2.83 .093 (1760) 10.57 .001 (2760) 0.10 .903 1.39 (0.009) 1.39 (0.007) 1.40 (0.021)
OCL accuracy (1760) 4.33 .038 (1760) 20.49 <.001 (2760) 0.85 .427 1.01 (0.006) 1.00 (0.005) 1.02 (0.016)
Effect of first‐degree family history of dementia
Age Education Group 1° family hx (n = 674) Without 1° family hx (n = 704)
(df) F P (df) F P (df) F P Mean (SD) Mean (SD)
DET speed (11,358) 10.84 <.001 (11,358) 45.90 <.001 (11,358) 10.21 .001 2.56 (0.104) 2.54 (0.106)
IDN speed (11,358) 75.25 <.001 (11,358) 9.76 .002 (11,358) 9.26 .002 2.70 (0.052) 2.69 (0.053)
OBK accuracy (11,358) 5.52 .019 (11,358) 8.81 .003 (11,358) 0.17 .684 1.39 (0.156) 1.39 (0.159)
OCL accuracy (11,358) 7.08 .008 (11,358) 24.43 <.001 (11,358) 0.02 .901 1.00 (0.104) 1.00 (0.106)

Note: FDR corrections have been applied to all P values.

Abbreviations: DET, Detection test; FDR, false‐discovery rate; IDN, Identification test; OBK, One‐Back test; OCL, One Card Learning test.