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Q methodology

Also called Q-sort, Q sort, forced distribution

Asking people to sort a set of statements onto a fixed grid, from most agree to most disagree, so that every placement is a choice against the others.

The grid is the instrument. It has a set number of places in each column, shaped roughly like a normal curve: few at the extremes, most in the middle. Because each column can only take so many statements, someone cannot agree strongly with everything; putting one statement at +3 means another cannot go there.

In full Q methodology the sorts are then factor-analyzed by person, to find groups of people who sort alike, the shared viewpoints in a population. Even without that step, where each statement landed on average, and how much people disagree about it, is a useful read of priorities.

Twenty to forty statements is typical. Fewer gives little to sort; more is slow, especially on a phone.

Where it goes wrong

Treating the grid's middle as neutral. A statement at 0 may be one somebody feels nothing about, or one they had nowhere else to put because the stronger columns were already full.

See also

Likert scale
A set of ordered answer options, usually four to seven, running between two poles or up from none of something.
Ordinal data
Answers with a known order but unknown spacing, which is what almost every rating question produces.
Straight-lining
Selecting the same answer across every row of a question battery.

All 35 terms

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