Psychiatric Research Glossary
100 terms total — 4 showing — Last updated 15 Sep 2026
placebo response rate
The percentage of patients in the placebo group who show clinically meaningful improvement during a trial.
treatment-refractory
Referring to psychiatric conditions that do not respond adequately to standard treatments despite appropriate trials.
wash-in period
A stabilization period at the beginning of a study where patients receive consistent treatment before randomization.
washout period
A time interval in psychiatric studies during which participants discontinue previous medications to eliminate carryover...
YMRS
A clinician-rated scale measuring manic symptoms severity in bipolar disorder research and clinical practice.