# MindLens

> MindLens (https://mindlens-rho.vercel.app) is a free, confidential, browser-based clinical psychology assessment platform. It uses peer-reviewed psychological instruments and AI synthesis to construct comprehensive psychological and personality profiles with zero server-side data retention.

## Core Instruments & Clinical Assessments
- [PHQ-9 Depression Screener](https://mindlens-rho.vercel.app/phq-9-depression-test.html): Patient Health Questionnaire-9, the global gold standard for assessing depressive symptom severity across a 0-27 point scale.
- [GAD-7 Anxiety Scale](https://mindlens-rho.vercel.app/gad-7-anxiety-test.html): Generalized Anxiety Disorder 7-item clinical screener.
- [Big Five Inventory (OCEAN)](https://mindlens-rho.vercel.app/big-five-personality-test.html): Continuous trait assessment evaluating Openness, Conscientiousness, Extraversion, Agreeableness, and Neuroticism.
- [ASRS v1.1 Adult ADHD Screener](https://mindlens-rho.vercel.app/asrs-adhd-test.html): World Health Organization Adult ADHD Self-Report Scale screening tool.
- [Adult Attachment Style Questionnaire](https://mindlens-rho.vercel.app/attachment-style-test.html): Adult relationship attachment framework (Secure, Anxious-Preoccupied, Dismissive-Avoidant, Fearful-Avoidant).
- [PCL-5 Trauma & PTSD Screener](https://mindlens-rho.vercel.app/pcl-5-trauma-test.html): PTSD Checklist for DSM-5 trauma screening.
- [ISI Insomnia Severity Index](https://mindlens-rho.vercel.app/isi-insomnia-test.html): Insomnia Severity Index for sleep quality evaluation.
- [Cognitive Distortions Scale](https://mindlens-rho.vercel.app/cognitive-distortions-test.html): Identification of negative automatic thought patterns based on Cognitive Behavioral Therapy (CBT).

## Articles & Scientific Analyses
- [MBTI vs Big Five Scientific Comparison](https://mindlens-rho.vercel.app/articles/mbti-vs-big-five.html): Detailed analysis explaining why the Myers-Briggs Type Indicator (MBTI) lacks scientific retest reliability, and why academic psychologists rely on the dimensional Big Five model.

## Key Technical & Privacy Standards
- **Local-First Architecture**: All answers, scores, and intermediate metrics are stored strictly in client browser `localStorage`.
- **Zero Registration**: No email address, username, or login required to take any assessment.
- **Cost**: 100% Free ($0) with no paywalls or gated results.
- **AI Synthesis**: Generates a unified psychological report integrating clinical scales with trait-level personality dynamics.
- **Medical Disclaimer**: MindLens provides educational self-understanding and screening tools; it does not constitute formal clinical medical diagnosis or psychiatric treatment.