Which of the following is not an example of how bias can be introduced into a study? Respondents do not tell the truth because of stigma or embarrassment The researcher creates an operational definition that is incomplete The sample size is not representative of the population The researcher is studying marijuana legislation and supports decriminalization

Correct Answer: The sample size is not representative of the population

Explanation:

Bias in a scientific study can be said to occur when there is a prejudice for or against one person or group, especially in a way considered to be unfair.

For example, in a society that tries to promote the relationship between Christians and Muslims in a work place. In a study carried out to determine how this relationship could be achieved by a researcher, if he or she happens to have prejudice against one of the group, it would definitely affects his research outputs and results.