अनुसंधान पद्धति में, जब एक प्रतिवादी (respondent) को पता होता है कि उसके व्यवहार को मापा या देखा जा रहा है और इस वजह से उसके व्यवहार में बदलाव आता है, तो इस प्रभाव को क्या कहा जाता है?

Which Indian independence movement leader was primarily known for his philosophy and practice of non-violent civil disobedience?

Who gave the call for 'Do or Die' during the Quit India Movement in 1942?

Which of the following revolutionary pairs were imprisoned together in Cellular Jail and faced harsh conditions, contributing significantly to the Indian independence movement?