Explore 2,500+ validated psychological & educational questionnaires
Curated by academics. Used by researchers, clinicians & universities worldwide.
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Every questionnaire includes a plain-language explanation by academic experts (e.g., when to use trait vs. state anxiety scales).
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Each entry includes a validated source, citation, and original publication details for academic use.
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Tools That Changed Everything
From detecting deadly viruses to redefining mental health, these tools didn't just collect data—they reshaped science, healthcare, and policy.
Enabled scientists to amplify even the smallest DNA samples. Made virus detection, genetic testing, and forensic analysis possible, and revolutionized modern medicine and research.
Genetic Testing
Virus Detection
The Maslach Burnout Inventory turned burnout from personal weakness into a recognized workplace crisis. It shaped global health policies and gave voice to millions.
Workplace Mental Health
Health Policy Impact
ELISA made virus detection rapid and reliable. It protected blood supplies in the AIDS crisis and remains essential for diagnosing HIV, hepatitis, and more.
Rapid Diagnosis
HIV & Hepatitis
The MMSE allowed doctors to detect dementia in its early stages, giving patients and families time to act before it was too late. It transformed geriatric care.
Early Dementia Detection
Cognitive Screening
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