Should we measure mental illness, or mental health? Introducing the Positive Mindset Index (PMI)
The Positive Mindset Index (PMI) is a freely available validated measure of mental wellbeing
Measures of mental health can be difficult to get right. For example, if you want to measure suicidality, the most obvious thing to do is ask people questions about how much they have been thinking about suicide, have they ever attempted suicide etc. This can make for an uncomfortable time for many participants, and can result in people dropping out of studies.
But what about if you can tap into mental health by asking people about their mental wellbeing? This would make the participant’s experience a lot less awkward, but can it be done in practice? Well, the Positive Mindset Index (PMI) (Barry, Folkard & Ayliffe, 2014), which asks people to rate their level of happiness, confidence etc, has proved to be strongly negatively correlated with suicidality (r = -.539) and strongly positively correlated with the SF-12 measure of mental health quality of life (r = .678). Phillips et al (2018) found good concurrent validity with PsyCap (an appealing personality) (r = .687) and the Subjective Happiness Scale (r = .689). Barry et al (2020) found good concurrent validity between the PMI and Rosenberg’s (1965) self-esteem scale (r = .766). This scale shows good internal reliability (Cronbach’s alpha = 0.926) and good concurrent validity with the mental health subscale of the SF-12 (r = .678). So not only does the PMI give you a sense of a person’s mental positivity, but it also gives you a sense of their mental health.
The PMI has proved it’s worth in several published projects since 2014, with a variety of demographics (people with health problems, men and women of various ages and ethnicities etc). But the PMI also has an advantage for people who interested in men’s mental health: it just so happens to be very male-friendly.
A male-friendly measure
What makes the PMI so male-friendly? Well, it is a very short questionnaire, and easy to fill in. Men are notorious in the research world for being difficult to recruit and having little time for research, so brief measures are definitely the way to go. It is also useful for people with limited reading skills, because it uses very few words, and all of them are relatively simple. It also also uses a neutral midpoint, which means participants aren’t under pressure to give strong opinions if they don’t want to. If participants become frustrated or bored, they can drop out of studies.
Because of this male-friendly aspect, the PMI has been used on several of the Male Psychology Network research projects, but has been used by other research teams too. The PMI has been so far used in twelve peer-reviewed published studies and a conference presentation, with a total of 10,208 participants.
Male and female patients with uveitis (an eye condition) (N = 200) (Barry, Folkard & Ayliff, 2014)
Men and women from general population (N = 348 women & 170 men) (Seager, Sullivan & Barry, 2014).
Men and women from general population (N = 217) (Barry, Seager & Brown, 2015)
Black men & women (N=53) and White men & women (N=149) (Roper & Barry, 2016)
Men and women from general population (N = 115 men & 232 women) (Liddon, Kingerlee & Barry, 2017).
Men in the British Isles (N = 2000) (Barry & Daubney, 2017)
Audit of mentoring scheme (conference presentation) (N = 16) (Doyle & Harney, 2018)
Men in the US (N = 5000) (Barry, 2018)
Disabled men and women in the US (N = 330) (Phillips et al, 2018).
Men and women in the UK aged over 50 years old (N = 394) (Hadley, Newby & Barry, 2019)
Men and women from general population (N = 203 men & 52 women)(Barry, Walker, Liddon and Seager, 2020)
Men in the UK (N = 29) (Barry & Liddon, 2020)
Men and women with disabilities in the US (N = 292) (Fry et al, 2020)
Men and women in the UK (N = 408) (Barry & Liddon, in press)
These populations vary by age, race, and ability, though are mostly from either the US or UK so are culturally relatively homogenous.
So what does the PMI look like?
The Positive Mindset Index scale consists of six items (happiness, confidence, being in control, emotional stability, motivation and optimism) on a 5-point Likert scale.
Participants are asked:
Please select one of the options (e.g. “happy” or “unhappy”) for the words in each row, indicating how you are feeling at this moment.
The response options are selected in each row:
The PMI is scored from 1 to 5, with lower scores indicating a less positive mindset. The mean of the 6 scores is used. The average score is around 3.5, with slight variation for age and culture. The scale shows excellent psychometric properties, and further details for researchers can be found here.
Is positive mindset related to positive psychology, or positive masculinity?
Although not specifically derived from positive psychology, there is some common ground between positive psychology and the PMI. Up until the 1990s, men and masculinity were seen in fairly benign terms in the field of psychology. However the 1990s saw a new deficit model of masculinity, which defined masculinity in negative terms (including misogyny and homophobia) and explored the ways in which masculinity might be damaging to the mental health of men, boys, and everyone around them. It’s been a relief to many people that the past decade has seen the birth of ‘positive masculinity‘. Positive masculinity has it’s roots in positive psychology, so brings not just the return of masculinity as a benign construct, but sees masculinity as something which is potentially an asset. In tandem with positive psychology / positive masculinity (PPPM), we have seen the development of the Male Gender Script (Seager, Sullivan & Barry, 2014), which takes a realistic view of masculinity, rather than the excessively harsh view of the 1990s.
Using the PMI in your research
The PMI is free to use and is very handy because it is short and therefore easy to add to a study without adding a burden to the person filling in your study. It is also very easy to score, so is attractive to researchers at all levels of experience. It’s not simply a measure for men’s mental health either, and although it hasn’t been standardised for children or non-English speakers, is perfect for use with adults in general.
For a more detailed description of the scale and it’s properties, see here.
Reference
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. Full text available here
A downloadable version of this webpage can be found here.
This article was first published on the Male Psychology Network website in 2019
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Disclaimer: This article is for information purposes only and is not a substitute for therapy, legal advice, or other professional opinion. Never disregard such advice because of this article or anything else you have read from the Centre for Male Psychology. The views expressed here do not necessarily reflect those of, or are endorsed by, The Centre for Male Psychology, and we cannot be held responsible for these views. Read our full disclaimer here.
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John Barry
Dr John Barry is a chartered psychologist, researcher, clinical hypnotherapist and co-founder of the Male Psychology Network, BPS Male Psychology Section, and The Centre for Male Psychology (CMP). Also co-editor of the Palgrave Handbook of Male Psychology & Mental Health, co-author of the textbook Perspectives in Male Psychology: An Introduction (Wiley), and presenter on Centre for Male Psychology training courses.