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Clinical Atlas Prestige · Evidence-first

Psych VivasFoundations — rating scales and measurement-based care

Psych Vivas · Foundations — rating scales and measurement-based care

Rating scales and measurement-based care — structured clinical viva

Fellowship viva covering core scales, psychometrics, MBC evidence, cut-off discipline, and implementation.

clinical
On this page & tools

Target exams

FRANZCPMRCPsychABPNMD-DNB

Target exams

FRANZCPMRCPsychABPNMD-DNB
Prompt
You are examining a psychiatry registrar. Defend how you use PHQ-9, GAD-7, HAM-D or MADRS, PANSS, YMRS, CGI, and MoCA/MMSE in routine care. Define reliability and validity. Explain MBC with named evidence (Guo, STAR*D, Fortney/Lewis). Walk through PANSS percent-change correction and careful cut-offs. Challenge: a consultant says 'I can tell if they are better without forms.'

Interpretation

Reveal interpretation

Opening frame. Scales quantify constructs; MSE and diagnosis remain clinical. MBC uses serial validated scores to change care, not decorate the chart.[4]

Core battery. PHQ-9 (0–27; bands 5/10/15/20; item 9 risk); GAD-7 (0–21; screen ~10); HAM-D/MADRS for clinician depression severity/change; PANSS for psychosis trial-grade severity; YMRS for mania severity; CGI-S/I 1–7 global; MoCA/MMSE cognitive screens with education/language caveats.[1][2][7]

Psychometrics. Reliability = consistency (internal, test–retest, inter-rater). Validity = measuring the intended construct (content, construct, criterion). Responsiveness = sensitivity to true clinical change.[1][2]

PANSS pearl. Items 1–7 → minimum total 30; percent change uses (total − 30).[2][5]

Evidence. Guo 2015 MBC vs standard care RCT; STAR*D algorithmic MBC; Fortney tipping point; Lewis implementation barriers/facilitators.[3][4][6]

Rebuttal to anti-scale consultant. Clinical impression is necessary but prone to drift and handover loss; measured residual symptoms drive earlier step-up; scores never replace empathy or MSE — they discipline follow-through.[4][6]

Key points

MBC core

Measure → share → discuss → act → remeasure.[4]

PHQ-9 bands

5 / 10 / 15 / 20 — cite Kroenke; not diagnoses.[1]

PANSS floor

Subtract 30 before percent change.[5]

References

  1. [1]Kroenke K, Spitzer RL, Williams JB The PHQ-9: validity of a brief depression severity measure J Gen Intern Med, 2001.PMID 11556941
  2. [2]Kay SR, Fiszbein A, Opler LA The positive and negative syndrome scale (PANSS) for schizophrenia Schizophr Bull, 1987.PMID 3616518
  3. [3]Guo T, Xiang YT, Xiao L, et al. Measurement-based care versus standard care for major depression: a randomized controlled trial with blind raters Am J Psychiatry, 2015.PMID 26315978
  4. [4]Fortney JC, Unützer J, Wrenn G, et al. A Tipping Point for Measurement-Based Care Psychiatr Serv, 2017.PMID 27582237
  5. [5]Obermeier M, Schennach-Wolff R, Meyer S, et al. Is the PANSS used correctly? a systematic review BMC Psychiatry, 2011.PMID 21767349
  6. [6]Lewis CC, Boyd M, Puspitasari A, et al. Implementing Measurement-Based Care in Behavioral Health: A Review JAMA Psychiatry, 2019.PMID 30566197
  7. [7]Nasreddine ZS, Phillips NA, Bédirian V, et al. The Montreal Cognitive Assessment, MoCA: a brief screening tool for mild cognitive impairment J Am Geriatr Soc, 2005.PMID 15817019