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Psychological Assessment & Diagnosis

A practice primer on assessment, diagnosis and measurement: where the three concepts differ, DSM-5-TR versus ICD-11, personality and cognitive testing, symptom scales and structured interviews, cross-orientation case formulation, and Chinese norms and qualifications.

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What an assessment looks like: first a conversation about why you are coming, how long the problem has lasted and how it affects your life; then an explanation of what will happen next and how information is protected; then, if needed, a small number of standardised measures; and finally a face-to-face feedback session.
What you may encounter: informed consent; information from records or family/school (with your knowledge); and a report that states conclusions, limits and recommendations.
Cautions: assessment is not an online quiz, and diagnosis requires clinical judgement rather than a single score. Be wary of anyone who hands over scores without explanation or labels you from one scale.
In an acute crisis, assessment defers to crisis management rather than following the usual routine.

You need a theoretical framework for how people develop problems and change — it determines how you formulate cases.
You need measurement literacy (reliability, validity, norms, standard error, fairness) and real training in administration and interpretation, not just scoring.
You need clear ethics and boundaries: informed consent, confidentiality, competence, non-maleficence and reporting standards. Diagnosis is a clinical act; counsellors and therapists have distinct scopes of practice.
Ongoing supervision and cross-cultural awareness matter, and localisation and norm updates must be treated cautiously.

Psychological Assessment & Diagnosis — practice primer

This page is a Chinese-language practice primer on assessment and diagnosis. The outline below summarises it in English.

Why it matters

Assessment, diagnosis and measurement are routinely conflated. Assessment is a multi-source understanding of a person; diagnosis classifies that information; testing only supplies quantified evidence.

Core framework

The nine-step assessment workflow, diagnostic systems (DSM-5-TR 2022 versus ICD-11), and cross-orientation case formulation (CBT, psychodynamic, humanistic, systemic, integrative).

Assessment and decisions

Personality assessment (MMPI, NEO, 16PF and projective methods), cognitive and neuropsychological testing (WAIS/WISC, Raven, MMSE/MoCA), symptom scales (PHQ-9, GAD-7, SCL-90) and structured interviews (SCID-5, MINI), plus rules for choosing tools.

China

Qualifications and scope of practice, test-use and professional-ethics requirements, the lag in localising new editions of instruments, and the division of labour across hospital, school and community services.

FAQs and appendices

Online quizzes, why scales alone cannot diagnose, how long assessment takes, and what low IQ scores mean; quick-reference table and report self-check list.