Definition
“Test should be measure what is supposing to measure.”
Validity is the best available approximation to the truth of a given proposition, inference, or conclusion.
Test...
Stress can be both Physical and Psychological.
Physical stress arises as a result of our body's response to physical stressors like work, noise, illness, exercise,...
Stress is the body's response or reaction to any physical, mental, or emotional strain. Stress can cause diseases like diabetes and hypertension. It also...