CHILD DEVELOPMENT PEDAGOGY

Detailed explanation-1: -Reliability and validity are both about how well a method measures something: Reliability refers to the consistency of a measure (whether the results can be reproduced under the same conditions). Validity refers to the accuracy of a measure (whether the results really do represent what they are supposed to measure).

Detailed explanation-2: -Accuracy: to how well the results of your experiment reflect the expected outcome. Validity: how well you have controlled your experimental variables in order to maintain a fair test. Reliability: how many times you repeat the experiment and come to similar results.

Detailed explanation-3: -Reliability and validity are closely related, but they mean different things. A measurement can be reliable without being valid. However, if a measurement is valid, it is usually also reliable.

Detailed explanation-4: -Relationship Between Reliability and Validity For a measurement to be valid, it has to be reliable. While validity is associated with accuracy, reliability is all about consistency. Therefore, an unreliable measurement cannot be valid. However, a measurement can be reliable without being valid.