Freudly+971 508685814hello@freudly.ai
Freudly
geriatrics

Cognitive Difficulties Scale (CDS) Test

Take the online Cognitive Difficulties Scale (CDS) Test - AI psychologist FreudlyYou can take Cognitive Difficulties Scale (CDS) Testhere. Online version of a simple and accurate psychological test with interpretation.en
Understand how often attention, memory, and thinking issues affect you in about 5 minutes. 24 quick items give a clear snapshot to help decide if further support may be needed.
Start Online Test
Questions: 245 minutes
08:30
October 2, 2025
October 2, 2025
Material has been updated
October 2, 2025
Material has been published
21,570 views
2,456 completions
1,942 likes
Verified by Daniel Hall
Psychologist with 25 years of experience
Share
Scale Explorer

How the Scales are Structured

example score
63/96
Cognitive Difficulties (CD)
Measures the severity of self-reported cognitive difficulties such as attention, memory, and thinking problems.
Within typical range
Elevated cognitive difficulties
0 – 42: Within typical range | 43 – 96: Elevated cognitive difficulties
A score of 63 falls in the Elevated cognitive difficulties range, indicating more frequent or pronounced cognitive complaints on this screening scale.
Start Online Test
just completed the test
DATA-BASED USER COHORTS

Who Usually Takes This Test?

Noticing memory slips
41%OF USERS
People who have started forgetting things, losing focus, or feeling mentally slower and want a quick check of how often it happens.
Recovering after illness
34%OF USERS
People in rehabilitation after events like concussion, stroke, severe infection, or surgery who want to track attention and thinking changes over time.
Under high stress or burnout
25%OF USERS
People with heavy workload, anxiety, depression, or sleep problems who feel their concentration and clarity have worsened and want an initial self-assessment.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Cognitive Impairment Scale (CIS)
Cognitive Impairment Scale (CIS)
Average
30.8
Normal range
17.8 — 43.8
min.
0
max.
96
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Start Online Test
Featured On
SAMPLE QUESTIONS

Example Questions From the Test

    • Never
    • Rarely
    • Sometimes
    • Often
    • Very often
    • Never
    • Rarely
    • Sometimes
    • Often
    • Very often
    • Never
    • Rarely
    • Sometimes
    • Often
    • Very often
These are 3 of the 24 real questions — the rest appear in the test. No sign-up needed to start.
Start Online Test
WHAT THE TEST MEASURES
About This Assessment
McNair and Kahn Cognitive Dysfunction Scale, CDS Test

Cognitive Difficulties Scale (CDS) Test - Symptoms and Signs

geriatrics

Cognitive functioning is often evaluated through structured self-report of everyday lapses in attention, memory, and related mental tasks. The Cognitive Difficulties Scale (CDS) is a brief questionnaire designed to capture an individual’s perceived frequency of common cognitive difficulties.

The measure includes 24 items and typically takes about 5 minutes to complete. Respondents rate how often they experience problems such as forgetfulness, reduced concentration, or slowed thinking; results are generally used as an initial indicator of perceived cognitive burden and may help guide decisions about further clinical evaluation or monitoring. The Cognitive Difficulties Scale (CDS) was developed by Kahn and McNair.

Author: Kahn, R., McNair, D.
Literature: McNair, D. M., & Kahn, R. J. Self-assessment of cognitive deficits. In T. Crook, S. Ferris, & R. Bartus (Eds.), Assessment in geriatric psychopharmacology. Mark Powley Associates. 1983.
You Might Also Like
Cognitive Mistakes Questionnaire (CMQ)
This questionnaire is designed to assess common cognitive distortions that…
Cognitive Representations of Illness Questionnaire
This self-report measure assesses how individuals cognitively appraise and…
Health Behavior Disorders Questionnaire
In clinical and counseling settings, the Health Behavior Disorders Question…
Popular tests
Do You Know Adolescent Psychology? Test
Communication Methods Knowledge Assessment Test
Type Identifier Test
Hierarchy of Life Values Test
Work Motivation Hierarchy Test
Competitive World Beliefs Scale Test
Belief in a Dangerous World Scale Test
Belief in a Just World Scale Test
Cognitive Need Scale Test
Dimensions of Anger Reactions-Revised (DAR-R) Test
Political Justice Scale Test
Tolerance Attitudes Scale Test
Measurement of Artistic and Aesthetic Needs Test
Cognitive Errors in Sport Assessment Test
General Self-Esteem Assessment Test
Attitudes Toward People With Mental Illness Questionnaire Test
Assessment of Educational Interaction Strategies With Children Test
I7 Impulsiveness Scale (I7) Test
Investment Attitudes Questionnaire Test
Index of Autonomous Functioning (IAF) Test
Internet User Personality Virtualization Index Test
Sleep Hygiene Index (SHI) Test
Team Group Cohesion Index Test
Seashore Group Cohesiveness Index Test
Female Sexual Function Index (FSFI) Test
Life Style Index (LSI) Test
Personal Wellbeing Index – Adult (PWI-A) Test
Voice Handicap Index (VHI) Test
Psychological General Well-Being Index (PGWBI) Test
Health Attitude Diagnostic Evaluation Test
Health Attitude Index Test
Peritraumatic Distress Index Test
Sexual Excitation Index Test
Student Sociocultural Safety Index Test
Tolerance Index Test
Insomnia Test
Couples Quiz
Whiteley Index (WI-8) Test
Identity Resilience Index (IRI) Test
World Health Organization-Five Well-Being Index (WHO-5) Test
Comparative Value Indices Test
Individual Work Performance Questionnaire (IWPQ) Test
Individual Media Consumption Style Questionnaire Test
Individual Style of Competitive Activity Test
Inclusive Leadership Analysis Instrument Test
Overall Job Satisfaction Test
Integrative Intercultural Competence Questionnaire Test
Integrative Anxiety Test
Bicultural Identity Integration Scale, Version 2 (BIIS-2) Test
Tolerance–Intolerance Scale Test
Emotion Use Test
Use of Emotions (Critics Rating) Test
Coping Behavior Assessment (MDICS) Test
University of Rhode Island Change Assessment (URICA) Test
Career Self-Efficacy Sources Scale Test
Yale Food Addiction Scale (YFAS) Test
Life Adaptation Questionnaire Test
Self-Care Questionnaire Test
How Do You Feel at Work? Questionnaire Test
Emotional Type Questionnaire Test
What Impression Does He Have on His Family? Test
Mindset Type Questionnaire Test
How Your Organization Is Developing Test
Stress Susceptibility Questionnaire Test
Interlocutor Listening Skills Assessment Test
Canadian Problem Gambling Index (CPGI) Test
Early Decision Categories Test
Quality of Interpersonal Relationships in the Educational Environment Test
Cambridge Depersonalization Scale (CDS) Test
Kentucky Inventory of Mindfulness Skills (KIMS) Test
Clinical Anger Scale (CAS) Test
Clinical Opiate Withdrawal Scale (COWS) Test
Cognitive Distortions in Online Communication Test
Columbia Depression Scale (DISC) Test
Columbia Depression Scale (DISC) Test
Columbia Depression Scale (DISC) Test
Communicative and Organizational Inclinations Questionnaire Test
Communicative Responses to Jealousy (CRJ) Test
Comprehensive Intellectual Humility Scale (CIHS) Test
Comprehensive Coping Inventory (CCI-20) Test
Comprehensive Coping Inventory (CCI-55) Test
Comprehensive Metacognitive Potential Questionnaire Test
Comprehensive Metacognitive Potential Questionnaire Test
Constructive-Destructive Family Scale Test
Conflict Situations Questionnaire Test
Short Impulsivity Questionnaire (IMP-15) Test
Eating Disorder Test
Dark Triad Test
Short Dark Triad (SD3) Test
Short Big Five Inventory (BFI-10) Test
Systemizing Quotient-Revised (SQ-R) Test
Brief Acculturation Orientation Scale (BAOS) Test
Brief Gender-Role Beliefs Scale (GBRS) Test
Barratt Impulsiveness Scale (BIS-11) Test
Brief Psychological Adaptation Scale (BPAS) Test
Brief Resilience Scale (BRS) Test
Brief Self-Control Scale (BSCS) Test
Brief Sociocultural Adaptation Scale (BSAS) Test
Brief Sociocultural Maladjustment Scale Test
Brief Fear of Negative Evaluation Scale (BFNE) Test
Brief Stress Tolerance Scale Test
Perfectionism test
Ten-Item Personality Inventory (TIPI) Test
Eysenck Personality Inventory (EPI) Test
Brief Illness Perception Questionnaire (BIPQ) Test
Gray-Wilson Personality Questionnaire Test
Brief Hardiness Questionnaire Test
Personality Inventory for DSM-5 Brief Form (PID-5-BF) Test
Brief Religious Coping Questionnaire (B-RCOPE) Test
Brief Self-Regulation Questionnaire Test
Brief Meaning-in-Life Crisis Questionnaire Test
Prodromal Questionnaire–Brief Version (PQ-B) Test
Creativity in Professional Activity Test
Business Communication Culture Assessment Test
Cultural and Value Orientations Test
Cultural Dimensions Test
Cultural Trends Test
Handedness Assessment (Right-Handed vs. Left-Handed) Test
Leadership Ability Assessment Test
Leader, Manager, Expert Test
Personal Belief in a Just World Scale Test
Personal Egogram Test
Personality Time Disorganizers Test
Creative Personality Characteristics Test
Zuckerman-Kuhlman Personality Questionnaire (ZKPQ-50-CC) Test
Athlete Personality Potential Assessment Test
Crisis Personality Profile Test
Personal Report of Communication Apprehension (PRCA) Test
Loyola Generativity Scale (LGS) Test
Locus of Control Scale Test
Locus of Control Test
People and Plants Test
Big Five Factor Markers (BFFM-100) Test
Big Five Factor Markers (BFFM-50) Test
Massachusetts Gambling Screen (MAGS) Test
Melbourne Decision Making Questionnaire (MDMQ) Test
Manager and Individual Assessment Test
Manager and Communication Test
Manager and Transformations Test
Manager and Human Relations Test
Metacognitive Components of Sport Performance Test
Metacognitions About Problematic Smartphone Use Test
Personal Death Metaphors (RDFS) Test
Metaphors of Professional Activity Test
Alternative Method Test
Carl Jung Personality Test
Social Maturity Level Assessment for Graduates Test
Risk Factors for Addiction in Children Aged 6–8 Assessment Test
Gaming Addiction Assessment Test
Deviant Behavior Assessment Test
Shyness Diagnostic Questionnaire Test
Irrational Beliefs Diagnostic Method (SPB) Test
Quality of Life Inventory (QOLI) Test
Cross-Gender Accentuation Assessment Test
Preschool Cultural Congruence Assessment Test
Cultural Congruence Assessment for Primary School Children Test
Personality Maturity Assessment Test
Personal Identity Assessment Test
Wisdom Diagnostic Method Test
Thinking Style Orientation Assessment Test
Child Illness Attitude Assessment Test
Professional Pedagogical Tolerance Assessment Test
Occupational Anxiety Assessment Test
Parental Anxiety Assessment Test
Assessment of the Structure of Signaling Systems Test
Subjective Well-Being Assessment Test
Marital Conflict Diagnostic Questionnaire Test
Assessment of Marital Conflict in the Family Role Structure Test
Cluttering Screening Questionnaire Test
Everyday Dialogues Questionnaire Test
Altruistic Attitudes Scale Test
Adolescent Anxiety Measurement Inventory Test
Adolescent Anxiety Measurement Method Test
Working Alliance Inventory – Short Form (WAI-S) Test
Working Alliance Inventory–Short Form (WAI-S) Test
Religious Activity Assessment Test
Mentality Type Assessment Test
Escapism Severity Scale Test
Ambition Assessment Test
Ethnocentrism Scale Test
Ethnocentrism Measurement Questionnaire Test
Personal Innovative Potential Assessment Test
Learning Motivation Assessment Test
Learning Motivation Assessment Test
Learning Motivation Assessment Test
Questionnaire for Assessing Students' Motives for Participation in Activities T…
Psychological Readiness for the Unified State Exam Assessment Test
Spiritual Crisis Self-Perception Assessment Test
Student Personality Socialization Assessment Test
Teachers' School Life Satisfaction Questionnaire Test
Reflectiveness Level Assessment Test
Proverb-Based Assessment of Value Attitudes Test
ISADA Method Test
Volitional Organization of Personality Assessment Test
Individual Perception of the Group Assessment Test
Scientific Research Motivation Assessment Test
Group Normative Preference Assessment Test
Value Orientation Assessment Test
Adolescent Cultural Congruence Assessment Test
Abnotivity Level Assessment Test
Comments
Leave a Comment