FMPS scoring: subscale scores and why there is no cutoff
How do you calculate FMPS subscale scores?
Group the responses by subscale using the scoring key for your version, then add the values in each group. There is no doubling step and no reverse-scoring on the standard form.
Take a fictional set of concern over mistakes responses: 4, 5, 4, 3, 5, 4, 4, 3, 5. The calculation is 4 + 5 + 4 + 3 + 5 + 4 + 4 + 3 + 5 = 37, against a possible range of 9 to 45.
A subscale score below its minimum or above its maximum indicates an input problem. Check for a missing item, a duplicated item, or a form that numbered its responses 0 to 4 instead of 1 to 5.
Is there a total FMPS score?
A total is sometimes reported, but it conventionally excludes the organisation subscale. That leaves 29 items and a range of 29 to 145. Frost and colleagues found organisation only loosely related to the other dimensions and recommended leaving it out of the total.
This produces a predictable discrepancy. A calculator that sums all 35 items gives a range of 35 to 175 and a larger number than one using the conventional 29-item total. Neither is wrong in itself, but comparing one with the other is.
Record which convention produced your figure. If a source quotes a total without saying whether organisation is included, the number cannot be interpreted.
How do I compare my own subscales with each other?
Do not compare the raw totals. Concern over mistakes has nine items and parental criticism has four, so concern over mistakes will usually produce a larger number regardless of how you answered.
To compare within your own profile, divide each subscale total by its number of items. That gives a mean item score between 1 and 5 on a common footing.
Using the fictional concern over mistakes total of 37, the mean item score is 37 ÷ 9 = 4.1. A parental criticism total of 12 gives 12 ÷ 4 = 3.0. On the raw numbers the first looks three times larger; on the mean item scores the difference is about one response step.
Are there FMPS cutoff scores for perfectionism?
No. There is no established cutoff that classifies someone as a perfectionist, and no severity bands equivalent to those published for the GAD-7 or the ISI. The FMPS was developed to study variation across a population, not to sort individuals into categories.
Websites that present perfectionism thresholds are adding an interpretation the scale does not carry. A high subscale score is a description of how you answered, not a threshold you have crossed.
This also means you cannot fail the questionnaire, and there is no score at which you become entitled to support. You can raise a concern at any score.
Is my FMPS score a percentage or a percentile?
Neither. A concern over mistakes score of 37 out of 45 does not mean you are 82% perfectionist or that you are more perfectionist than 82% of people. It is a sum of nine responses on a five-point scale.
Percentile statements require a comparison sample, and any such sample belongs to a specific population, country, and version. Without that stated context, a percentile figure attached to an online perfectionism result is not interpretable.
FMPS numbers are also not comparable point for point with the PSS-10, GAD-7, K10, ISI, or BAI. Do not rank your concerns by which questionnaire produced the biggest figure.
What if organisation is my highest subscale?
That is a common and unremarkable pattern. Organisation reflects a preference for order and is the dimension least connected to distress in the original research, which is precisely why it is usually excluded from the total.
A high organisation score alongside low concern over mistakes describes someone who likes things tidy, not someone in difficulty. Reading it as evidence of a problem inverts what the subscale was designed to show.
This page is educational. A questionnaire score cannot establish a diagnosis or explain the cause of your symptoms. If you are struggling, speak with a counselor or healthcare professional, whatever your score.
Read how to ask for support or find a helpline in your country.