Umarbek

You Get What You Measure

The measurement instrument determines the result.

Quarterly profit as the main indicator of company performance. Managers optimize short-term results at the expense of long-term ones.

IQ tests. They compile questions, discard those that don't correlate with others, calibrate results to a normal distribution. Then announce: intelligence is normally distributed in the population!

Of course it's normally distributed. You made it that way through calibration.

Accuracy of measurement gets confused with relevance of measurement.

What's easy to measure isn't necessarily important. What's important is often hard to measure.

In school, it's easy to measure training. Hard to measure education. So exams test training.