विभिन्न परीक्षणों में दिए गए प्रतिदर्श द्वारा प्राप्त अंक तब तुलनीय होते हैं, जब:

Difficulty value and discrimination power are primarily calculated during:

In which of the following contexts is a Diagnostic Educational Test primarily utilized to identify specific underlying challenges?

Assertion (X): Reliability is not a sufficient condition to determine the validity of any educational test. Reason (R): Validity of any test depends upon its relevance to the purpose of testing. Select the correct code: