When data collection from individuals is not a realistic option. If respondents are unwilling or unable to provide data through questionnaires or interviews, observation is a method that requires little from the individuals for whom you need data .

Case study research has been intensively practiced in either the social and natural sciences.

Adequate training and experience can make it almost a matter of habit. The third is perception which comprises the interpretation of sensory reports. Thus, sensation does not merely reports the facts as observed but perception enables the mind to recognize the facts.

____________ involves a detailed contextual analysis of a limited number of events or conditions and their relationships. It provides the basis for the application of ideas and extension of methods

In a case study, the researcher may choose to study the subject cases at a single point of time, before, during, or after a specific event or series of events, or over an extended time period.

Observation involves three processes, except

The presentation of results should be kept simple or sometimes lengthy in addition to offering possible solutions with strong evidence, pros and cons.

It is important to lay out and highlight all appropriate facts and points and summarizing data results.

In undisguised observation, the subjects are aware that they are being observed. In this type of observation, there is the fear that the subject might show a typical activity. The entry of observer may upset the subject.