Concept:Cognitive validity refers to how well the curriculum matches the mental ability and developmental stage of the learner.
Explanation:According to NCF-2005, science education must be true to the learner, true to life, and true to science.
Cognitive validity specifically requires that the content, language, and pedagogical practices of the curriculum are age-appropriate and within the cognitive reach of the child.
It means the science curriculum should match the learner's mental maturity and understanding level at the upper primary stage.
Other types of validity include content validity, process validity, historical validity, environmental validity, and ethical validity.
Content validity focuses on conveying significant and correct scientific facts.
Process validity focuses on engaging learners in scientific methods and nurturing curiosity.
Historical validity helps learners view science as a social enterprise.
Thus, cognitive validity is directly linked to making the curriculum suitable for the child's age and cognitive development.
Answer:'Cognitive validity' of the science curriculum implies that it should be age-appropriate.
Correct option: B.