It is a perfectly good scorecard. The problem is the sample size a human reviewer forces on you, and everything downstream that inherits it.
| Calls reviewed | Margin of error (points) |
|---|---|
| 100 | ±9.7 |
| 200 | ±6.8 |
| 300 | ±5.5 |
| 600 | ±3.7 |
| 1000 | ±2.7 |
| 1600 | ±1.9 |
A team “improving” from 81 to 84 has not measurably moved.
The industry convention exists because ten calls is roughly what an analyst can get through per agent per month. It was never chosen for statistical reasons, and it does not hold up to them.
At that coverage, the margin of error is usually wider than the differences you are trying to detect. Month-on-month movement of two or three points: the kind that gets reported upward as an improvement, sits comfortably inside the noise.
Worse, the sample is rarely random. Calls get picked because they were short, or recent, or flagged. Whatever selection rule the analyst used quietly becomes the definition of your quality score.
None of this is an argument against spreadsheets. It is an argument against a sample chosen by how many hours somebody has.
Standard sampling arithmetic · check it in the calculator.
Including the rows where the spreadsheet wins.
| Criterion | Spreadsheet + analyst | QXAI |
|---|---|---|
| Coverage of your call volume | A sampleA sampleBounded by analyst hours. | As much as you buyAs much as you buyBounded by credits, not headcount. |
| Consistency between reviewers | NoNoDrifts between analysts and across the week. Calibration exists to fight this. | YesYesThe same scorecard applied the same way every time. |
| Evidence behind a score | If they wrote itIf they wrote itDepends entirely on how much the analyst typed in the comment box. | YesYesQuoted transcript lines on every parameter. |
| Knowing which scores to distrust | NoNoEvery score looks equally certain. | YesYesA confidence figure per parameter. |
| Judgement on genuinely ambiguous calls | BetterBetterA person who knows the account, the customer and the context will read a hard call better than a model. This is the spreadsheet’s real advantage. | Flags themFlags themLow confidence tells you which calls to hand to that person, rather than replacing them. |
| Cost of doubling your coverage | Another analystAnother analystA salary, plus training and calibration time. | More creditsMore creditsLinear, and you can stop. |
| Setup effort | NoneNoneYou already have it. | An afternoonAn afternoonRebuild your form as a parameter set, or start from a template. |
| Works with no budget at all | YesYesGenuinely free. | NoNoCredits cost money. Free credits on signup, then you buy a pack. |