An observational study in Cognitive Impairment, sponsored by Kutahya Health Sciences University. Completed at 1 site in Turkey. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-10.
Sponsored by Kutahya Health Sciences University · Observational
Self-report scales used in the assessment of cognitive functions can serve as an initial screening tool for the general population, aside from specific neuropsychiatric tests, which are more costly and time-consuming. This study is designed to examine the validity and reliability of the Turkish version of the Cognitive Functioning Self-Assessment Scale (CFSS). Permission for the study has been obtained from the developer of the scale, Dr. Maria Antonietta Annunziata. The Turkish translation of the scale will be made, and approval will be obtained from the original author for the final version. Subsequently, the Turkish version of the CFSS, the Hospital Anxiety and Depression Scale, and the Cognitive Failures Questionnaire will be administered to participants. Surveys will be completed either online via Google Forms or in written form. To assess the reliability of the scale, the Turkish version of the CFSS will be re-administered to the same participants 7-14 days later.
3,843 studies on the registry are indexed under Cognitive Dysfunction; 1,100 are open to participants now.
This study's enrollment of 180 is above the median of 150 across 950 observational studies indexed under Cognitive Dysfunction.
Browse Cognitive Dysfunction studies →Kutahya Health Sciences University is the lead sponsor of 209 studies on the registry; 46 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Healthy individuals over 18 years old
Exclusion Criteria:
Cognitive Functioning Self-Assessment Scale (Turkish Vesion)
The "Cognitive Functioning Self-Assessment Scale" developed by Annunziata et al. in 2016, consists of 18 questions aimed at assessing cognitive function areas such as attention, memory, problem-solving, temporal-spatial orientation, and dual-task performance. Scoring is done on a 5-point Likert scale, ranging from 1 to 5. Higher scores on the scale indicate an increase in subjective cognitive complaints.
Time frame: Baseline and 7-14 days after
Hospital Anxiety and Depression Scale (HADS)
The HADS was developed by Zigmond and Snaith in 1983. The HADS consists of a total of 14 items, including 7 items for anxiety and 7 items for depression. The items are scored between 0-3 points on a 4-point Likert-type scale according to how the individual felt in the previous week. The scores that can be obtained from anxiety and depression subscales vary between 0-21. The Turkish validity and reliability study of the scale was conducted by Aydemir et al. in 1997. High scores obtained from the scale indicate increased mood disorder.
Time frame: Baseline
Cognitive Failures Questionnaire (CFQ)
The BDI is a self-report scale developed by Broadbent et al. in 1982 to assess cognitive failures that occur in daily life. Errors in perception, memory and motor functions are assessed with 25 questions. Each question is scored from 0 (never) to 4 (very often). The total score that can be obtained from the scale ranges from 0-100. Higher scores indicate an increased level of cognitive failure and worse cognitive status. The Turkish validity and reliability study of the scale was conducted by Ekici et al. in 2016.
Time frame: Baseline
This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.
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Kutahya Health Sciences University