alleryA lesson simplifies a concept so much that it becomes scientifically wrong. Which validity is breached?
ACognitive validity
BHistorical validity
CContent validity
DEnvironmental validity
Answer & Solution
Correct answer: C. Content validity
1. Content validity demands significant and correct scientific content.
2. Simplification is allowed to suit the learner but must not be so trivialized that it conveys something flawed or meaningless.
3. Cognitive validity is about age suitability, and historical and environmental validity are about perspective and context.
_Source: NCERT Position Paper, National Focus Group on Teaching of Science, Executive Summary_
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