Characteristics of good measurement are

A. Reliability

B. Accuracy

C. Objectivity

D. Validity

E. Practicability

Choose the correct answer from the options given below:

The correct response is A, B, and C only.

Key PointsReliability:

• Definition: Reliability refers to the consistency of a measurement tool. A reliable measurement gives the same result under consistent conditions.
• Importance: It ensures that the measurement is stable and repeatable over time.

Accuracy:

• Definition: Accuracy refers to how close a measured value is to the true value or the standard.
• Importance: Accurate measurements reflect the true value of the variable being measured, which is crucial for validity.

Objectivity:

• Definition: Objectivity means that the measurement is free from personal biases or subjective influences.
• Importance: Objective measurements are based on observable phenomena and are independent of the observer’s personal feelings.

Additional Information

•  A good measurement is reliable, meaning it consistently produces the same results under consistent conditions. It is valid, accurately measuring what it is intended to measure, and accurate, closely reflecting the true value.
• Objectivity ensures it is free from personal biases, maintaining fairness. Practicability means it is easy to administer and interpret, making it user-friendly and feasible to implement. These characteristics ensure the measurement is effective, reliable, and meaningful.