Primary Cognitive
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Alzheimer's Disease Assessment Scale (ADAS-Cog) [25]
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This subscale of the ADAS, measures severity of cognitive dysfunction associated with Alzheimer's disease and is widely used in pharmacological studies of dementia and MCI [51]. The ADAS-Cog has excellent psychometric properties being valid and reliable, and is endorsed as a standard outcome measure [26].
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Primary Functional
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Bayer-Instrumental Activities of daily Living (B-ADL) [26, 52]
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The B-IADL initially developed for pharmaceutical clinical trials to assess deficits in the activities of daily life in community-dwelling individuals with MCI and response to pharmacological agents [26], is a 25-item informant or proxy questionnaire.
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Secondary Cognitive
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Mini-Mental State Examination (MMSE)[29]
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Internationally known brief measure to screen for cognitive impairment [41], with valid and reliable quantitative assessment of severity of cognitive impairment, and is sensitive to changes in cognitive function over time [53].
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GP-Cog [54]
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Six item self report scale identifying whether patients have greater difficulty functioning in 6 areas of daily life compared to their level of functioning 5-10 years earlier.
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Clinical Dementia Rating (CDR) [28]
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A commonly used clinical tool for the global assessment of dementia severity, is completed by a clinician after synthesizing information obtained from the patient, informants and any other sources [28].
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Subjective Memory Complaint (SMC)
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Eight questions were developed to measure SMC including type of memory difficulty, concern level, duration, comparison to peers, and reported by informant, meeting criteria for the assessment of SMC [55].
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Life Experience Questionnaire (LEQ)[19]
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Questionnaire is a self report questionnaire examining the amount and quality of mental activity a person has engaged in over their life time [19].
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Matrices
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Matrices, a perceptual subtest of the Wechsler Adult Intelligence Scale-III (WAIS-III) assesses executive functions and requires visual perception, organization, and synthesis of visual spatial information [56].
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Similarities
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This verbal subtest from the WAIS-III is used to measure verbal conception formation and abstraction [56].
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Trail Making Test (TMT)[40] A and B
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Trials A and B test speed of attention, sequencing and visual search, and includes a motor response component, whilst B also assesses mental flexibility, an executive function [57].
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Logical Memory
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The Logical Memory subtest of the Wechsler Memory Scale 3rd edition (WMS-III) is used to measure both immediate and delayed memory for verbal information.
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Benton Visual Retention Test (BVRT)[42]
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This widely used visual memory test assesses visual perception and visual constructive abilities as participants are required to draw from memory simple designs [41].
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Symbol Digit Modalities Test (SDMT)
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SDMT, first published in 1973 by Aaron Smith and subsequently revised in 1982[41] measures divided attention, visual scanning, tracking, and motor speed. It uses a substitution format presenting symbols with matching numbers, and participants are required to name the numbers corresponding to each given symbol.
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Category Fluency
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Category Verbal Fluency measures verbal production of animal names from semantic memory [58].
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Controlled Oral Word Association Test (COWAT)
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COWAT is a language based task assesses association fluency, and is often used as a measure of executive functioning. The most commonly used letters are F. A. S. or C. F. and L. based upon word prevalence rates [58].
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Memory Awareness Rating Scale-Memory Functioning (MARS-MF) [43]
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The MARS-MF is an 11 item self report rating scale of everyday memory functioning. Ratings are made on a 0 - 4 scale where 0 = never and 4 = always, and is usually administered in an interview format [43].
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