Assessment for:
Cognitive Disengagement Syndrome (CDS).
Also known as Sluggish Cognitive Tempo
Cognitive Disengagement Syndrome (CDS)(formerly called “Sluggish Cognitive Tempo”)
Scroll down for the assessment.
Scroll down for the assessment.
What it is:
CDS describes a pattern of attention and energy difficulties. It’s not an official diagnosis in DSM-5-TR or ICD-11. Think of it as a cluster of symptoms that some people experience, often alongside ADHD or anxiety.
Common signs (in everyday life)
How clinicians assess it:
Because CDS isn’t a formal diagnosis, providers use questionnaires and your history to understand what’s going on and how much it affects daily life.
What else could be contributing?
Similar symptoms can come from:
A good evaluation checks for these and builds a plan around your specific needs.
What can help
CDS describes a pattern of attention and energy difficulties. It’s not an official diagnosis in DSM-5-TR or ICD-11. Think of it as a cluster of symptoms that some people experience, often alongside ADHD or anxiety.
Common signs (in everyday life)
- Frequent daydreaming or mind-wandering
- Feeling “in a fog,” staring, or losing your train of thought
- Sleepy during the day or low energy
- Slow to get started or to finish tasks
- Slower thinking or movement, seeming underactive or lethargic
- Low initiative—needing more prompting to begin things
How clinicians assess it:
Because CDS isn’t a formal diagnosis, providers use questionnaires and your history to understand what’s going on and how much it affects daily life.
- Adults: tools like the Adult Concentration Inventory (ACI) (ratings from 0 = not at all to 3 = very often, over the past 6 months).
- Youth: tools like the Child Concentration Inventory-2 (CCI-2).
- Other options include Barkley SCT scales.
- There’s no single “pass/fail” cutoff. Scores are used with reports from you/family/teachers and look at impairment (work, school, home).
What else could be contributing?
Similar symptoms can come from:
- Poor sleep or sleep disorders (e.g., insufficient sleep, sleep apnea)
- Depression or anxiety
- Medication effects or medical conditions
- ADHD (you can have ADHD and CDS-type symptoms together)
A good evaluation checks for these and builds a plan around your specific needs.
What can help
- Sleep basics: regular schedule, limit late-night screens/caffeine, address snoring or insomnia
- Daily structure: written plans, smaller steps, timers/reminders, visual checklists
- Skills & therapy: organization/coaching strategies; CBT for motivation and mood
- School/work supports: extra time, reduced distractions, clear task lists
- Treat co-occurring conditions: If ADHD, anxiety, or depression is present, treating those often improves CDS-type symptoms too
Adult Concentration Inventory (ACI)
Rate behaviors over the past 6 months. Scale: 0=Not at all, 1=Sometimes, 2=Often, 3=Very often.
Scores
Symptom Total: 0 / 48
Symptom Mean: 0.00 / 3
Impairment Total: 0 / 24
Scoring Table (Guidance Ranges)
Bands are practical guidance, not diagnostic cutoffs. Anchor decisions to impairment, differential, and collateral data.
| Symptom Mean (0–3) | Symptom Total (0–48) | Interpretation | Suggested Clinical Action |
|---|---|---|---|
| 0.00–0.49 | 0–7 | None / Minimal | Reassure; monitor if functional complaints exist. |
| 0.50–0.99 | 8–15 | Mild | Psychoeducation; consider sleep/lifestyle; track over time. |
| 1.00–1.49 | 16–23 | Moderate | Further assessment; CBT/skills; screen comorbidities. |
| 1.50–1.99 | 24–31 | Elevated | Evaluate cross-setting impairment; consider treatment. |
| 2.00–3.00 | 32–48 | Very Elevated | Address contributors (sleep/mood/meds); treatment plan. |
| Impairment Total (0–24) | Interpretation | Examples & Action |
|---|---|---|
| 0–3 | None / Minimal | Routine monitoring. |
| 4–7 | Mild | Occasional inefficiency; coach compensatory strategies; track goals. |
| 8–12 | Moderate | Noticeable impact on work/school/home; structured intervention indicated. |
| 13–18 | Marked | Frequent interference; step-up care and supports. |
| 19–24 | Severe | Pervasive impairment; comprehensive plan and accommodations. |
ACI content adapted/paraphrased for clinical use. This tool does not replace clinical judgment or formal diagnosis.
Sources in APA Style Cognitive Disengagement Syndrome / Sluggish Cognitive Tempo
American Psychiatric Association. (2022). Diagnostic and statistical manual of mental disorders (5th ed., text rev.). American Psychiatric Association Publishing.
Barkley, R. A. (2013). Distinguishing sluggish cognitive tempo from ADHD in children and adolescents: Executive functioning, impairment, and comorbidity. Journal of Clinical Child & Adolescent Psychology, 42(2), 161–173. https://doi.org/10.1080/15374416.2012.734259
Barkley, R. A. (2014). Sluggish cognitive tempo/concentration deficit disorder: Current status, future directions, and a plea to change the name. Journal of Abnormal Child Psychology, 42(1), 117–125. https://doi.org/10.1007/s10802-013-9824-y
Becker, S. P. (2021). Systematic review: Assessment of sluggish cognitive tempo over the past decade. Journal of the American Academy of Child & Adolescent Psychiatry, 60(6), 690–709. https://doi.org/10.1016/j.jaac.2020.10.016
Becker, S. P. (2024). Cognitive disengagement syndrome: A construct at the crossroads. Journal of the American Academy of Child & Adolescent Psychiatry. Advance online publication. https://doi.org/10.1016/j.jaac.2024.11.002
Becker, S. P., & Barkley, R. A. (2018). Sluggish cognitive tempo. In T. Banaschewski, D. Coghill, & A. Zuddas (Eds.), Oxford textbook of attention deficit hyperactivity disorder (pp. 147–153). Oxford University Press.
Becker, S. P., Burns, G. L., Garner, A. A., Jarrett, M. A., Luebbe, A. M., Epstein, J. N., Willcutt, E. G., & Beebe, D. W. (2017). Sluggish cognitive tempo in adults: Psychometric validation of the Adult Concentration Inventory. Psychological Assessment, 30(3), 296–310. https://doi.org/10.1037/pas0000476
Becker, S. P., Leopold, D. R., Burns, G. L., Jarrett, M. A., Langberg, J. M., Marshall, S. A., McBurnett, K., Waschbusch, D. A., & Willcutt, E. G. (2016). The internal, external, and diagnostic validity of sluggish cognitive tempo: A meta-analysis and critical review. Journal of the American Academy of Child & Adolescent Psychiatry, 55(3), 163–178. https://doi.org/10.1016/j.jaac.2015.12.006
Becker, S. P., Luebbe, A. M., & Joyce, A. M. (2015). The Child Concentration Inventory: Initial validation of a child self-report measure of sluggish cognitive tempo. Psychological Assessment, 27(3), 1037–1052. https://doi.org/10.1037/pas0000083
Becker, S. P., Marshall, S. A., & McBurnett, K. (2014). Sluggish cognitive tempo in abnormal child psychology: An historical overview and introduction to the special section. Journal of Abnormal Child Psychology, 42(1), 1–6. https://doi.org/10.1007/s10802-013-9825-x
Becker, S. P., Willcutt, E. G., Leopold, D. R., Fredrick, J. W., Smith, Z. R., Jacobson, L. A., Burns, G. L., Mayes, S. D., Waschbusch, D. A., Froehlich, T. E., McBurnett, K., Servera, M., & Barkley, R. A. (2023). Report of a work group on sluggish cognitive tempo: Key research directions and a consensus change in terminology to cognitive disengagement syndrome. Journal of the American Academy of Child & Adolescent Psychiatry, 62(6), 629–645. https://doi.org/10.1016/j.jaac.2022.07.821
Fredrick, J. W., Burns, G. L., Langberg, J. M., & Becker, S. P. (2022). Examining the structural and external validity of the Adult Concentration Inventory for assessing sluggish cognitive tempo in adults. Assessment, 29(4), 681–694. https://doi.org/10.1177/10731911211027224
McBurnett, K., Villodas, M., Burns, G. L., Hinshaw, S. P., Beaulieu, A., & Pfiffner, L. J. (2014). Structure and validity of sluggish cognitive tempo using an expanded item pool in children with attention-deficit/hyperactivity disorder. Journal of Abnormal Child Psychology, 42(1), 37–48. https://doi.org/10.1007/s10802-013-9801-5
Penny, A. M., Waschbusch, D. A., Klein, R. M., Corkum, P., & Eskes, G. (2009). Developing a measure of sluggish cognitive tempo for children: Content validity, factor structure, and reliability. Psychological Assessment, 21(3), 380–389. https://doi.org/10.1037/a0016600
Sáez, B., Servera, M., Burns, G. L., & Becker, S. P. (2019). Advancing the multi-informant assessment of sluggish cognitive tempo: Child self-report in relation to parent and teacher ratings of SCT and impairment. Journal of Abnormal Child Psychology, 47(1), 35–46. https://doi.org/10.1007/s10802-018-0436-4
Skirbekk, B., Hansen, B. H., Oerbeck, B., & Kristensen, H. (2011). The relationship between sluggish cognitive tempo, subtypes of attention-deficit/hyperactivity disorder, and anxiety disorders. Journal of Abnormal Child Psychology, 39(4), 513–525. https://doi.org/10.1007/s10802-011-9488-4
Barkley, R. A. (2013). Distinguishing sluggish cognitive tempo from ADHD in children and adolescents: Executive functioning, impairment, and comorbidity. Journal of Clinical Child & Adolescent Psychology, 42(2), 161–173. https://doi.org/10.1080/15374416.2012.734259
Barkley, R. A. (2014). Sluggish cognitive tempo/concentration deficit disorder: Current status, future directions, and a plea to change the name. Journal of Abnormal Child Psychology, 42(1), 117–125. https://doi.org/10.1007/s10802-013-9824-y
Becker, S. P. (2021). Systematic review: Assessment of sluggish cognitive tempo over the past decade. Journal of the American Academy of Child & Adolescent Psychiatry, 60(6), 690–709. https://doi.org/10.1016/j.jaac.2020.10.016
Becker, S. P. (2024). Cognitive disengagement syndrome: A construct at the crossroads. Journal of the American Academy of Child & Adolescent Psychiatry. Advance online publication. https://doi.org/10.1016/j.jaac.2024.11.002
Becker, S. P., & Barkley, R. A. (2018). Sluggish cognitive tempo. In T. Banaschewski, D. Coghill, & A. Zuddas (Eds.), Oxford textbook of attention deficit hyperactivity disorder (pp. 147–153). Oxford University Press.
Becker, S. P., Burns, G. L., Garner, A. A., Jarrett, M. A., Luebbe, A. M., Epstein, J. N., Willcutt, E. G., & Beebe, D. W. (2017). Sluggish cognitive tempo in adults: Psychometric validation of the Adult Concentration Inventory. Psychological Assessment, 30(3), 296–310. https://doi.org/10.1037/pas0000476
Becker, S. P., Leopold, D. R., Burns, G. L., Jarrett, M. A., Langberg, J. M., Marshall, S. A., McBurnett, K., Waschbusch, D. A., & Willcutt, E. G. (2016). The internal, external, and diagnostic validity of sluggish cognitive tempo: A meta-analysis and critical review. Journal of the American Academy of Child & Adolescent Psychiatry, 55(3), 163–178. https://doi.org/10.1016/j.jaac.2015.12.006
Becker, S. P., Luebbe, A. M., & Joyce, A. M. (2015). The Child Concentration Inventory: Initial validation of a child self-report measure of sluggish cognitive tempo. Psychological Assessment, 27(3), 1037–1052. https://doi.org/10.1037/pas0000083
Becker, S. P., Marshall, S. A., & McBurnett, K. (2014). Sluggish cognitive tempo in abnormal child psychology: An historical overview and introduction to the special section. Journal of Abnormal Child Psychology, 42(1), 1–6. https://doi.org/10.1007/s10802-013-9825-x
Becker, S. P., Willcutt, E. G., Leopold, D. R., Fredrick, J. W., Smith, Z. R., Jacobson, L. A., Burns, G. L., Mayes, S. D., Waschbusch, D. A., Froehlich, T. E., McBurnett, K., Servera, M., & Barkley, R. A. (2023). Report of a work group on sluggish cognitive tempo: Key research directions and a consensus change in terminology to cognitive disengagement syndrome. Journal of the American Academy of Child & Adolescent Psychiatry, 62(6), 629–645. https://doi.org/10.1016/j.jaac.2022.07.821
Fredrick, J. W., Burns, G. L., Langberg, J. M., & Becker, S. P. (2022). Examining the structural and external validity of the Adult Concentration Inventory for assessing sluggish cognitive tempo in adults. Assessment, 29(4), 681–694. https://doi.org/10.1177/10731911211027224
McBurnett, K., Villodas, M., Burns, G. L., Hinshaw, S. P., Beaulieu, A., & Pfiffner, L. J. (2014). Structure and validity of sluggish cognitive tempo using an expanded item pool in children with attention-deficit/hyperactivity disorder. Journal of Abnormal Child Psychology, 42(1), 37–48. https://doi.org/10.1007/s10802-013-9801-5
Penny, A. M., Waschbusch, D. A., Klein, R. M., Corkum, P., & Eskes, G. (2009). Developing a measure of sluggish cognitive tempo for children: Content validity, factor structure, and reliability. Psychological Assessment, 21(3), 380–389. https://doi.org/10.1037/a0016600
Sáez, B., Servera, M., Burns, G. L., & Becker, S. P. (2019). Advancing the multi-informant assessment of sluggish cognitive tempo: Child self-report in relation to parent and teacher ratings of SCT and impairment. Journal of Abnormal Child Psychology, 47(1), 35–46. https://doi.org/10.1007/s10802-018-0436-4
Skirbekk, B., Hansen, B. H., Oerbeck, B., & Kristensen, H. (2011). The relationship between sluggish cognitive tempo, subtypes of attention-deficit/hyperactivity disorder, and anxiety disorders. Journal of Abnormal Child Psychology, 39(4), 513–525. https://doi.org/10.1007/s10802-011-9488-4