The assignment of numbers to differentiate values of a variable Measures specific techniques or instruments used for measurement and generally refer to quantitative devices. Decisions based on measurement. Evaluation refers to procedures for collecting information and using the information to make decisions.
Assessment means evaluation and the more specific process of diagnosing individual difficulties.
Classroom assessment refers to the entire process of measurement, evaluation, and use of the information by teachers and students. The purpose of measurement for research To obtain information about the variables that are being studied. There is a close relationship between the names and definitions of the variables being studied and the nature of their measurement.