Psychology Articles
Accessible psychology knowledge to help you better understand yourself.
Frost Multidimensional Perfectionism Scale (FMPS): Understanding the Six Core Dimensions of Perfectionism
The Frost Multidimensional Perfectionism Scale (FMPS) is one of the most widely used instruments for measuring perfectionism in depth. It breaks perfectionism down into six distinct dimensions: Concern over Mistakes, Personal Standards, Parental Expectations, Parental Criticism, Doubts about Actions, and …
Acceptance and Action Questionnaire-II (AAQ-II): A Standardized Measure of Experiential Avoidance
The Acceptance and Action Questionnaire-II (AAQ-II) is a 7-item self-report measure of psychological inflexibility and experiential avoidance, widely used in clinical and research settings within Acceptance and Commitment Therapy (ACT). This article provides an overview of its theoretical foundations, dimensional …
Internet Addiction Test (IAT): A Standardized Instrument for Assessing Digital Dependency
The Internet Addiction Test (IAT), developed by Dr. Kimberly S. Young in 1998, is one of the most widely used self-assessment instruments for internet addiction worldwide. This article provides a systematic introduction to this 20-item standardized scale.
EAT-26 (Eating Attitudes Test): A Standardized Screening Tool for Eating Disorder Risk
Worried about your relationship with food? The EAT-26 screens for eating disorder risk across 26 questions covering dieting, bulimia, and oral control. About 5 minutes.
Pittsburgh Sleep Quality Index (PSQI): Is Your Sleep Really Good?
The Pittsburgh Sleep Quality Index (PSQI) is one of the most widely used self-report measures of sleep quality worldwide. This article explores its seven components—subjective sleep quality, sleep latency, sleep duration, sleep efficiency, sleep disturbances, hypnotic medication use, and daytime …
CES-D Depression Test: A Comprehensive Guide to the Center for Epidemiologic Studies Depression Scale
The CES-D (Center for Epidemiologic Studies Depression Scale), developed by Lenore Radloff in 1977, is a classic self-report depression screening tool widely used in epidemiological research and clinical screening. This article provides a comprehensive overview of its theoretical foundations, four-factor …
Aggression Questionnaire (AQ) — Buss & Perry's Standard Measure of Aggression
The Aggression Questionnaire (AQ), developed by Buss and Perry in 1992, is one of the most widely used standardized psychometric tools for assessing trait aggression. This article provides a comprehensive overview of the AQ's theoretical foundations, its four-factor structure (Physical …