Bias<span>. An unintended influence that makes a study less objective or less true. convenience </span>sample. Asample<span> made up of only people who are easy to contact. interviewer-induced </span>bias<span>. When the interviewer unknowingly directs the respondent to give a particular </span>answer<span>. observational study. A study in which the researcher</span>
<span>was a revivalist preacher, philosopher, and Congregationalist Protestant theologian. Like most of the Puritans, he held to the Reformed theology.</span>