Reliability

reliability in educational research

1. RELIABILITY By- GURPREET SIDHU ROLL NO.14 subject- Research

2. FILE TITTLE - RELIABILITY SUBMITTED TO – DR.SHEERISHPAL SINGH ASST. PROFFESSOR , Department of education (CENTRAL UNI OF PUNJAB) SUBMITTED BY – GURPREET SINGH ROLL NO. 14 CLASS – M.Ed

3. RELIABILITY WHAT IS RELIABILITY ??? Giving the same or compatible result in different experiments, situations, is called RELIABILITY. So by reliability of a test mean how dependable, trustworthy or faithful the test is.

4. DEFINITIONS OF RELIABILITY Gronland and Linn: Reliability refers to the consistency of measurement that is, how consistent test scores or other evaluation results are from one measurement to others. Anastasi: Reliability refers to the consistency of scores obtained by the same individuals when re-examined with the same test on different occasions or with different sets of equivalent items or under variable examining conditions.

5. METHODS OF RELIABILITY 1. TEST RETEST METHOD 2. SPLIT HALF METHOD 3. PARALLEL FORMS METHOD 4. INTERNAL CONSISTENCY METHOD 5. SCORER`S RELIABILITY

6. 1. Test Retest method Test retest reliability is a measure of reliability obtained by administering the same test twice over a period of time to same group of individuals .

7. 2. Split–half method A method of determining the reliability of a test by dividing the whole test into two halves and scoring the two halves separately.

8. 3. Parallel Forms Method Parallel forms reliability is a measure of reliability obtained by administering different versions of an assessment tool (both versions must contain items that probe the same construct ,skill,knowledge,base,etc)to the same group of individuals.

9. 4. Internal consistency method Internal consistency reliability  is a measure of how well the items on the test measure the same construct or idea.