NBME 28 Score Calculator: The Most Forgiving Step 1 Form

Form 28 is a 200-item paper, and the NBME 28 score calculator applies one straight line: 274.1444 minus 1.0456 points for each wrong answer.

Nothing else feeds in. The NBME 28 score calculator cannot see which systems you missed, how long you took, or the block order it came in.

That slope is the smallest here, so the NBME 28 score calculator reads higher than every sibling at a matched count.

Percent correct is the same input: on a 200-question paper the NBME 28 score calculator reads one percentage point as two questions.

Two questions are worth about 2.09 scaled points, so ten questions move the NBME 28 score calculator by roughly ten and a half.

The pass probability beside the estimate is a separate logistic curve centred on 196, sitting next to the NBME 28 score calculator rather than inside its line.

It reads 86 per cent at 65 wrong, 71 at 70 and 50 at 75, where the NBME 28 score calculator returns 196 exactly.

No score report is needed. To run the NBME 28 score calculator by hand, multiply wrong answers by 1.0456 and subtract from 274.1444.

Offline that gives 227 at 45 wrong, 217 at 55 and 206 at 65, figures the NBME 28 score calculator reproduces exactly.

The CBSSA forms publish no conversion table, so the NBME 28 score calculator is a reconstruction rather than an official lookup. See the modelling notes.

Every row here comes from the engine behind the NBME 28 score calculator, so the chart and the tool cannot disagree.

Zero wrong is 274, and the NBME 28 score calculator then reads 264, 253, 243, 232, 222, 211 and 201 at each further ten wrong.

Below the line it falls slowly: the NBME 28 score calculator gives 190 at 80 wrong, 180 at 90 and 170 at 100.

As percentages, the NBME 28 score calculator puts 90 per cent correct at 253, 80 per cent at 232 and 70 per cent at 211.

The reference table above prints the same NBME 28 conversion chart in five-question steps, and the NBME 28 score calculator supplies each pass probability.

The flat slope shows at the foot of the table: at 100 wrong the NBME 28 score calculator still reads 170, where Form 31 reads 162.

Its bands come off the same line: the NBME 28 score calculator reaches 242 at 31 wrong, 225 at 47, 210 at 61 and 196 at 75.

Raw counts do not travel. Give 70 wrong to the NBME 28 score calculator and it says 201, where Form 26 says 198 and Form 31 says 195.

The NBME 28 score calculator fits a line to one number, and that number is the whole of its information.

Timed in one block or spread over two evenings, the NBME 28 score calculator returns identical digits for an identical count.

Our source table for Form 28 quotes no confidence interval, so the NBME 28 score calculator draws no band around its estimate.

The gentle slope cuts both ways: five questions either way move the NBME 28 score calculator five points, against six on Form 26.

That makes it steadier against a miscount and less able to separate two candidates whose preparation differs, which the NBME 28 score calculator cannot flag.

Rounding also skips values: 14 wrong reads 260 and 15 reads 258, so the NBME 28 score calculator never prints 259.

A nine-hour exam day tests stamina that a 200-item paper does not, and the NBME 28 score calculator cannot price that in.

A trend across two or three comparable sittings carries more signal than any single reading from the NBME 28 score calculator.

Precision is not accuracy. Run one count twice and the NBME 28 score calculator returns the same answer, which is repeatability rather than evidence.

Form 28 is normally sat one to three weeks out, as confirmation rather than diagnosis, which is the narrow job the NBME 28 score calculator does well.

It answers one question: has the last fortnight of work held? The NBME 28 score calculator has nothing to say about anything else.

Because the curve is forgiving, pair it rather than trusting it alone. A single reading from the NBME 28 score calculator is the weakest in the set.

Seventy wrong reads 201 here and 195 on Form 31, so six points of any jump can belong to the NBME 28 score calculator rather than to you.

If the number sits above your earlier forms, check the form that penalises most before the NBME 28 score calculator convinces you the work is finished.

If it agrees with your other assessments, that agreement is the signal, and the NBME 28 score calculator has earned your confidence.

A result below 196 here is among the strongest warnings available, because the NBME 28 score calculator had every arithmetic advantage.

With time for one more sitting, the next form in the sequence reads stricter than the NBME 28 score calculator does.

Every form has its own constants, so compare the per-question penalties before quoting a count from the NBME 28 score calculator.