The four factors limiting a
respondents reliability are ;
- Acquienscence Bias: This limiting
factor is also called the "yeah bias" or "friendliness bias". This
occurs mainly when the respondents tend to agree with researcher to
have a cordial relation, or perceive them to experts. This factor
can be controlled by replacing questions that the researcher finds
it could evoke an yea answer, with such questions that would evoke
a real response from the respondents
- Social desirability bias: This bias
occurs when respondents respond to the questions in a way which are
most socially accepted. They tend to answer the questions related
to social issues in a generalized most socially acceptable manner
than speaking out their mind. This factor can be controlled by the
researcher by encouraging them to respond by giving an
unconditional positive regard, and phrasing that it's okay to speak
out the reality. It could also be controlled when the questions
involve a third-party response. Thus, the respondents would express
their views using the third-party angle.
- Habituation Bias: When the similar
types of questions are repeated, it's the tendency to answer them
in a similar manner without giving it a much thought. This is
natural design by our brain to conserve our energy. So the
respondents, respond to similar sounding questions in similar
manner. To limit this bias, the researcher should vary the wording
of the questions to evoke right answers, and also, should engage
the respondents in an interesting conversation so that they may not
feel bored or fatigued.
- Sponsor Bias: This type of bias
when the respondents know or suspect the sponsors of the research.
This knowledge of sponsors influences the responses, because their
attitude towards the sponsors have an impact on them. To avoid such
bias, the researcher should take a neutral and independent stance,
this would motivate the respondents to take the same, and a
tendency to respond in a negative or positive manner due to the
attitude towards the sponsor would be avoided.