Click the player and start listening There are two players. The player one is for listening Part A and the player two is for listening Part BClick the players and start listening: Current Page 1 Page 2 Complete markup1 Q21 Q22 Q23 Q24 25-26 Choose TWO letters A-E Which TWO disadvantages of the questionnaire form of data collection do the students discuss? A The data is sometimes invalid. B Too ew people may respond. C It is less likely to reveal the unexected. D It can only be used with literate populations. E There is a delay between the distribution and return of questionnaires. Next Page > Log in or register to post comments