Positive Mindset Index (PMI)

Introduction

The Positive Mindset Index (PMI) is a brief mental health index validated across multiple studies with approximately 15,000 participants. It measures six aspects of mental positivity: happiness, confidence, being in control, emotional stability, motivation, and optimism.

The scale is designed for ease of use, with only six items using simple language. The neutral midpoint removes any pressure to commit to either end of an opinion.

Scoring Guide

The average score is around 3.0–3.5. Scores above this indicate above average positivity.

Average scores below 2.5 are low, and suggest someone may benefit from working on improving their mental positivity (e.g., by talking to a trusted friend or therapist, taking a walk in nature, etc.).

As a rough guide, scores 1 SD below the population mean (approximately 2.2–2.6 depending on demographics) may be considered potentially in the clinical range.

Download the official PMI Scoring Guide (PDF)

Validity & Reliability

The PMI shows excellent internal reliability (Cronbach's alpha = 0.926) and good concurrent validity with established mental health measures including the SF-12 mental health subscale (r = .678) and Rosenberg's self-esteem scale (r = .766).

The scale has been validated across diverse populations varying by age, race, and ability in 15 peer-reviewed published studies.

References

• Barry, J. A., Folkard, A., & Ayliffe, W. (2014). Validation of a brief questionnaire measuring positive mindset in patients with uveitis. Psychology, Community & Health, 3(1), 1-10.
• Seager, M., Sullivan, L., & Barry, J. (2014). Gender-related schemas and suicidality: Validation of the male and female traditional gender scripts questionnaires. New Male Studies.
• Barry, J., et al. (2020). Concurrent validity with Rosenberg's self-esteem scale (r = .766). Psychreg Journal of Psychology.
• Fabella, F. E. T. (2023). Exploring the factors that influence the positive mindset of selected educators. World Journal of Advanced Research and Reviews, 20(02), 276-284.
• Barry, J. (2023). The belief that masculinity has a negative influence on one's behavior is related to reduced mental well-being. International Journal of Health Sciences, 17(4), 29.