UGC NET Questions (Paper – 1)

Statements A, B, C and E accurately identify sources of measurement error and strategies to reduce it. Poor wording and careless responding can both distort data, while standardised procedures and training investigators help make measurements more consistent. Statement D is false because measurement error directly undermines reliability by introducing random or systematic noise into scores. Therefore, the correct combination includes A, B, C and E but not D.

Option A:
Option A is correct because it includes the four statements that together show how errors arise and how they can be mitigated through design and training. It recognises that reliability depends on minimising such errors.

Option B:
Option B is incomplete as it excludes E, thereby neglecting the role of training in reducing interviewer or observer-related errors. Without E, the focus is limited to wording, respondent behaviour and standardisation but not human skill development.

Option C:
Option C is incorrect because it incorporates D, the claim that measurement error does not affect reliability. This directly contradicts the concept of reliability, which is weakened when error variance is high.

Option D:
Option D is wrong because it retains D and omits B, failing to highlight the impact of respondent carelessness on measurement quality while accepting a false statement about reliability. This leads to an inaccurate understanding of error sources and consequences.