निम्नलिखित में से कौन सी व्यक्तित्व अनुसूचियां कारक-विश्लेषण (Factor Analytic) विधियों द्वारा निर्मित नहीं की गई थीं? 1. 16 व्यक्तित्व कारक प्रश्नावली (16 PF)2. कॉमरे व्यक्तित्व स्केल (Comrey Personality Scales)3. जेनकिंस गतिविधि सर्वेक्षण (Jenkins Activity Survey)4. एडवर्ड्स व्यक्तिगत प्राथमिकता अनुसूची (EPPS) सही विकल्प चुनें:

Given below are two statements, one labeled as Assertion (A) and the other as Reason (R): Assertion (A): Total variance of observed test scores is equal to the sum of true score variance and error variance. Reason (R): Classical test theory assumes that true scores and error scores are statistically uncorrelated and independent. In light of the above statements, choose the correct answer from the options given below:

In reliability analysis of psychological tests, the Spearman-Brown formula is used to: