Margin discipline.
Whether every line starts in the same place down the left edge of the page.
What margin discipline means
Margin discipline measures the consistency of the left edge: how much the start of each line moves in and out as you go down the page. It is a page-level measurement rather than a letter-level one.
It is scored on variation, not position. A wide margin and a narrow margin both score well as long as the edge is straight. What loses points is an edge that creeps inward, drifts outward, or moves unpredictably from line to line.
Why it matters
The left edge is the first thing a reader sees and the thing their eye returns to at the end of every line. A ragged edge slows down that return, and it makes an otherwise neat page look careless.
For anyone whose handwriting is being marked, this is disproportionately visible. Margins are one of the few things a reader notices before reading a single word, so they shape the impression the rest of the page has to overcome.
What a good page looks like
A good page has a left edge you could rule a line down. Every line starts at the same point, indented paragraphs start at the same deeper point, and the edge does not creep as the page fills.
What usually pulls the score down
- No printed margin on the paper, and no habit of setting one.
- The hand and arm moving down the page without the paper moving with them.
- Rushing the return to the start of the line.
- Starting each line relative to the line above rather than to the page edge, which lets a small error accumulate.
How to practise it
Fold or rule a margin and start every line against it, deliberately, for a full page. The habit worth building is looking at the margin as you return rather than aiming by feel.
If the edge creeps rather than wanders, the cause is usually the paper staying still while the writer moves. Sliding the sheet up as you work down it keeps the hand in the same place relative to the body and the margin straightens on its own.
The drill the report prescribes
Margin-box writing: keep an even left edge down the page.
How Vahini measures it
A scanned page gives the analyser the finished writing, not the movement that produced it, so this factor is read from left margin consistency and reported as such. The Vahini pen senses the movement directly, which is the difference between inferring how a page was written and recording it.
Questions
Does the margin need to be a particular width?
No. The measurement is consistency. Whatever width you start with, hold it.
Does this matter on plain paper?
More, not less. Ruled and margined paper does most of this work for you; on plain paper the straight edge has to come from the writer.
See this factor in your own handwriting
The analyser scores a photo of a handwritten page on all twenty factors, names the two worth working on first, and prescribes the drills for them. It is free, it needs no pen, and it is an educational tool rather than a medical assessment.