abstract: A substantial amount of research has been dedicated to understanding how and why innocent people confess to crimes that they did not commit. Unfortunately, false confessions occur even with the best possible interrogation practices. This study aimed to examine how different types of false confession (voluntary, compliance, and internalization) and the use of jury instructions specific to confessions influences jurors’ verdicts. A sample of 414 participants read a criminal trial case summary that presented one of four reasons why the defendant falsely confessed followed by either the standard jury instruction for confessions or a clarified version. Afterwards, participants completed several items assessing the perceived guilt of the defendant, their attitudes on confessions in general, and their opinions on jury instructions. Although the three confession reasons did not differ among one another, jurors who were given no explanation for the false confession tended to more harshly judge the defendant. Further, the clarified jury instructions did not influence the participants’ judgments. Future research should focus on how expert witness testimonies affect verdicts regarding each type of false confession reason and whether the media may influence a juror’s knowledge of factors that could provoke false confessions. / Dissertation/Thesis / Masters Thesis Psychology 2017

The existence of the oath in the courtroom can be traced back thousands of years throughout history, but the use, meaning, and effect of the oath in law has changed dramatically. The oath as we know it was once a powerful truth-telling instrument that our ancestors used to call upon a higher power. It was the belief of many that the oath itself was not sworn to man or state, but rather directly to a deity. The oath has since then evolved as a result of ever changing beliefs, fueled by increasing tolerance, shaping the oath into more of a tradition, and less of an edict. For centuries, theorists have attempted to determine whether an oath in court is actually effective at accomplishing its goal. The intent of this thesis is to examine the origin of the oath all the way up to the present day. It will be through a comprehensive study of federal law, state law, case law, articles, and publications that we will better understand the oath as a truth-telling instrument that in recent times has lost its effect. From there, it will be possible to better form a solution to a problem that plagues our courtrooms: perjury, or the act of lying under oath. This thesis will seek to establish the best way for our community to actively work towards ensuring the integrity and effectiveness of our judicial system.