Table 3: Standardized loadings ( 𝛽 ) of cognitive indicators on first-order cognitive factors. ** 𝑝 < 0 . 0 0 1 .

Indicator variableInterim factorCognitive factor* 𝛽

UFOV1UFOV0.53**
UFOV2UFOV0.78**
UFOV3UFOV0.80**
UFOV4UFOV0.65**
CRT1CRT0.93**
CRT2CRT0.91**
UFOVSpeed0.77**
CRTSpeed0.77**
AVLT total recallMemory0.78**
HVLT total recallMemory0.82**
Rivermead total recallMemory0.62**
Letter series scoreReasoning0.92**
Letter sets scoreReasoning0.70**
Word series scoreReasoning0.90**
Everyday problems testEveryday cognition0.83**
Timed Instrumental Activities of Daily Living (reverse-coded)Everyday cognition0.68**
Observed Tasks of Daily LivingEveryday cognition0.69**
Vocabulary, odd itemsVocabulary0.83**
Vocabulary, even itemsVocabulary0.87**

Note: Speed is defined as a second-order factor since better fit was yielded when local associations among UFOV and CRT measures were captured in a first-order factor. These first-order factors were then allowed to load on a second-order speed factor. SeeSection 2for full names of tests used.