Table 1 Inclusion and exclusion criteria to recruit for survey participants

Age

≥ 18 years

Questionable validity of content

Each participant was required to read the informed consent form that appeared on their computer screen prior to beginning the survey.

Alzheimer’s disease caregiver status

Informal caregiver to an AD patient

Cognitively impaired

Possess any of the following conditions:

 psychiatric disorder,

 developmental disorder that affected cognitive or emotional functions so that judgment and reasoning were significantly diminished,

 under the influence of/dependent on drugs/alcohol, or

 suffering from degenerative diseases affecting the brain.

English literacy

Able to read and write English sufficiently to complete the study instrument and provide the informed consent.