The document discusses the concept of reliability in language assessment, defining it as the consistency of test marks across different conditions. It outlines various factors contributing to unreliability, including student-related issues, rater biases, test administration conditions, and inherent test characteristics. The importance of reliability is emphasized, stating that a test cannot be valid unless it is reliable.

1. RELIABILTY
(Language Assessment)
GROUP #. 02
• JAWERIA JABBAR 4128 S.S
• M. AWAIS 4125 S.S
• SALMA AKHTAR 4103 S.S
• AFIA ISLAM 4108 S.S

2.  RELIABILITY:
• “The RELIABILITY of a test is an estimate of the consistency of its
marks”
• A reliable test is one where for example, a student will get the
same mark if he or she takes the test, possibly with a different
examiner, on a Monday morning or a Tuesday afternoon. A test
must be reliable, as a test cannot be valid unless it is reliable.
• Issues of Reliability are called Unreliability.

3.  FACTORS OF UNRELIABILTY:
• Student related reliability
• Rater Reliability
• Test administration reliability
• Test reliability

4.  STUDENT RELATED RELIABILTY:
• Student temporary illness
• Fatigue
• Physical & psychological weakness
• Bad day
• Some more issues which can decrease student’s true score.
• Test-wiseness

5.  RATER RELIABILTY:
• Inter-rater reliability ( 3 checkers for 1 test)
• Intra-rater reliability (1 teacher
• Fatigue of Rater
• Bias of Rater

6.  TEST ADMINISTRATION RELIABILITY:
• Noise pollution which makes issue for listening
• Photocopying issues
• Amount of lights
• Environment or Temperature issues
• Conditions of Desks and chairs

7.  TEST RELIABLITY:
• Printing mistakes
• Measurement of Test
• Time for Test
• Handwriting may be issue for understanding.

8. Thank you!