Table 4 Confirmatory factor analysis (CFA) on 4 factors using principle component with varimax rotation
From: Reliability and construct validity of the Early Dementia Questionnaire (EDQ)
Scale | Item | Loading on 4 factors | |||
|---|---|---|---|---|---|
1 | 2 | 3 | 4 | ||
Memory | Require check list as memory support | 0.493 | |||
Difficulty in remembering events that took place in the past 1 week (recent memory) | 0.660 | ||||
Unable to find kept item | 0.641 | 0.343 | |||
Difficulty in remembering names/familiar faces | 0.743 | ||||
Difficulty in remembering familiar road directions | 0.522 | ||||
Repetitive questioning | 0.534 | 0.329 | |||
Concentration | Difficulty in following conversation | 0.796 | |||
Difficulty understanding reading | 0.777 | ||||
Difficulty following stories on television | 0.571 | 0.545 | |||
Physical and emotional symptoms | Difficulty carrying out daily house chores/work/hobby | 0.578 | |||
Difficulty in taking care/personal hygiene or using the toilet | 0.396 | 0.349 | |||
Disrupted movement (physical restlessness) | 0.707 | ||||
Unsuitable reaction towards external stimuli (example: telephone ringing - emotional outburst) | 0.700 | ||||
Obsession towards emotional event, although it has taken place long time ago (example: death of family member or friend) | 0.485 | ||||
Not interested in surroundings | 0.564 | ||||
Looking for support/assurance from partner | 0.620 | ||||
Sleep and environment | Night-day rhythm disruption | 0.635 | |||
Restlessness at night | 0.422 | 0.662 | |||
Confusion after moving houses/in a new environment | 0.724 | ||||
Outsiders aware of changes in term of behavior/appearance | 0.429 | ||||