Answer to Question #200476 in Computer Networks for Jade

Question

Definition, Advantages and Disadvantages of Observation, Interview and and Survey

Answer 1

OBSERVATION

Definition

It is a qualitative research technique where the researchers observe participants' ongoing behavior in a natural situation.

Advantages

• Very accurate
• simplest method
• very useful in framing hypothesis
• independent of people's willingness to report
• It is a universal method
• Observation is the Only Appropriate Tool for Certain Cases

Disadvantages

• lack of reliability
• Some of the Occurrences may not be Open to Observation
• Faulty Perception- some things are not exactly how they appear
• Not all Occurrences Open to Observation can be Observed when Observer is at Hand
• It is expensive
• It takes a lot of time to investigate
• Difficulty in checking the validity
• It is an inadequate method

INTERVIEW

Definition

It is defined as a conversation for gathering information.

Advantages

• It is a flexible method
• Information is more correct as compared to other methods
• It yields a higher percentage of return as compared to questionnaires
• It is easy to evaluate the verbal and non-verbal queues
• It is a more appropriate technique for revealing information about complex, emotionally laden subjects
• it is comparatively easy to avoid misinterpretations or misleading questions.

Disadvantages

• It demands a lot of effort and time
• It is expensive
• Data recorded may be incompetent and inaccurate if the interview is not well qualified
• The human equation may distort the returns

SURVEY

Definition

Is the collection of data from a predefined group of respondents to gain information and insights into various topics of interest.

Advantages

• Low cost
• Little or No Observer Subjectivity
• High representative
• Precise results
• Convenient data gathering
• Good statistical significance

Disadvantages

• Not Ideal for Controversial Issues
• Infrlexible design
• Possible Inappropriateness of Questions