Undisguised observation

It refers to one of the ways of using observation as method of primary data collection. In this type of observation, the respondents are aware that they are being observed. For example, respondents know the observer or any mechanical device used for observation. Researchers disagree on how much effect the presence of an observer on behaviour. One viewpoint is that observer effect is minor and short lived. The other position is that the observer can seriously bias the behaviour pattern.