Question

question no 7 plz answer fast​

Answer 1

Double check all measurements for accuracy. For example, double-enter all inputs on two worksheets and compare them.

Double check your formulas are correct.

Make sure observers and measurement takers are well trained.

Make the measurement with the instrument that has the highest precision.

Take the measurements under controlled conditions.

Pilot test your measuring instruments. For example, put together a focus group and ask how easy or difficult the questions were to understand.

Use multiple measures for the same construct. For example, if you are testing for depression, use two different questionnaires.

Answer 2

Explanation:

Types of Errors in Measurement System. Generally errors are classified into three types: systematic errors, random errors and blunders. Gross errors are caused by mistake in using instruments or meters, calculating measurement and recording data results.

Types of Errors in Measurement System. Generally errors are classified into three types: systematic errors, random errors and blunders. Gross errors are caused by mistake in using instruments or meters, calculating measurement and recording data results.The measurement error is defined as the difference between the true or actual value and the measured value. The true value is the average of the infinite number of measurements, and the measured value is the precise value.