Merit value year 9

Distribution curve split by municipal and independent operator.

Here is the question everyone wants answered: do independent schools give higher grades? Compare the two distribution curves. The independent operators have a curve that sits slightly to the right — but is it because they teach better, or because they have pupils with more favourable backgrounds? This chart gives half the answer. The rest requires you to scroll on.

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Do independent schools produce higher merit values?

The merit value in year 9 is the most widely used measure for comparing compulsory schools. It is calculated from the pupil's 16 best subject grades and can reach a maximum of 340 points. The national average is around 230.

The distribution curve shows that independent schools as a group have a somewhat higher average merit value than municipal schools. The curve for independent operators is shifted to the right.

But interpretation requires caution. Independent schools on average have pupils with more favourable socioeconomic backgrounds. When you control for parental education level and income, the difference shrinks dramatically — and in some studies it disappears entirely.

The spread within each group is moreover larger than the difference between the groups. The best municipal schools have higher merit values than the worst independent schools — and vice versa. Choosing a school based solely on operator type would mean missing the large variation that exists within both categories.

Statistics: academic year 2023/24. Source: Skolverket open data, Kolada and SCB. Processed by Skolkoll. Glossary · About the data.

Primary sources in this visualization

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About the measures in this visualisation

Merit score year 9(Skolverket)
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