abhishreshthaa
Abhijeet S
OBSERVATION
Definition
Advantages of observation method
Disadvantages of observation method
Definition
- • It is the process of recognizing people, objects and occurrences rather than asking for information.
- • Instead of asking consumers what brand they buy the researchers arrange to observe what products are brought.
- • E.g. a large food retailer tested a new slot-type shelf arrangement for canned foods by observing shoppers as they used the new shelves.
Advantages of observation method
- 1. When the researcher observes and records events, it is not necessary to rely on the willingness and ability of respondents to report accurately.
- 2. The biasing effects of interviewers or their phrasing of the questions is either eliminated or reduced.
- 3. Data collection by observation is more objective and hence more accurate.
Disadvantages of observation method
- 1. Researchers have recognized the merits of observations opposed to questioning, yet the vast majority of researchers continue to rely on the use of a questionnaire.
- 2. The most limiting factor in the use of observation is the inability to observe things such as attitudes, motivation, etc.
- 3. Events of more than short-term duration such as a family’s use of leisure time and personal activities such as brushing of teeth are better discussed with questionnaires.
- 4. In some observational studies it is impractical to keep the respondent from knowing that they are being observed. This results in a biasing effect.
- 5. Cost is another major disadvantage.
- E.g. To observe the customers who come in to buy canned milk, an observer has to wait for the customers to come in and buy the milk.
- The unproductive time is an increased cost.