🔸Breakthrough in the 1960s 📈 The real breakthrough in opinion polling came in the 1960s when several organizations, such as Operations Research Group (ORG) 🔎, Indian Institute of Public Opinion (IIPO) 📊, and Opinion Poll Survey and Forecast (OPSF) 📈, started conducting pre-election surveys using more scientific methods, such as random sampling and structured questionnaires. These organizations played a pivotal role in revolutionizing the field of opinion polling in India, introducing advanced statistical techniques and rigorous methodologies. Relevance for UPSC: Familiarity with the organizations involved and the methodologies employed is important for understanding the evolution of polling practices in India, which has been a recurrent topic in UPSC Mains General Studies papers. 📝 Questions related to the principles of scientific polling, sampling techniques, and the challenges faced in conducting accurate pre-election surveys have been frequently asked. #ScientificPolling #SamplingTechniques #PreElectionSurveys #MethodologicalChallenges #StatisticalTechniques 🔸CSDS and Landmark Developments 🏛️ One of the landmark events in the history of opinion polling in India was the formation of the Centre for the Study of Developing Societies (CSDS) in 1963. 🏆 CSDS, under the leadership of eminent psephologists like Yogendra Yadav and Sanjay Kumar, conducted numerous pre-election and post-election surveys, which gained widespread recognition for their accuracy and impartiality. CSDS played a pivotal role in establishing India as a global leader in the field of electoral studies and psephology. Relevance for UPSC: CSDS and its contributions are crucial for understanding the role of research organizations in the Indian electoral process, which has been a frequent topic in UPSC Mains General Studies papers. 📝 Questions related to the significance of psephology, the challenges faced by research organizations, and the role of independent bodies in ensuring free and fair elections have been asked. #CSDS #Psephology #ElectoralStudies #ResearchOrganizations #FreeAndFairElections

link.springer.com/article/10… #openaccess article explains how to deal with the 4 most pervasive #methodologicalchallenges in #research Psychometrically deficient measures Idiosyncratic samples/contexts less-than-ideal research designs Insufficient causal evidence @gwbusiness

Skynet R package has the potential to become the backbone of a range of easily navigable tools overcoming some of the main #MethodologicalChallenges researchers face when handling complex airline data in an urban context @bdrudder #transport #method ow.ly/Sjgq30mWDFh