The PSRTI conducts the Regular Training Course on Survey Operations and Questionnaire Design on August 31-September 3, 2021 Posted October 4, 2021 The Philippine Statistical Research and Training Institute (PSRTI) conducted its regular training course on Survey Operations and Questionnaire Design on August 31-September 3, 2021.  The training provided participants with an understanding of the continue reading : The PSRTI conducts the Regular Training Course on Survey Operations and Questionnaire Design on August 31-September 3, 2021