"Hypothesis is a prediction often based on informal observation, previous research, or theory that is testing in a research study" (Aron, Aron, & Coups, 2013, p. 108). In a research study, the testing is referred to as a hypothesis procedure. We must first state a research hypothesis and a null hypothesis. "Research hypothesis is a statement in a hypothesis testing procedure about the predicted relation between populations. Null hypothesis is a statement about a relation between populations that is the opposite of the research hypothesis" (Aron, Aron, & Coups, 2013, p. 108). The null hypothesis is often said to be the opposite of what is being predicted. For this study, the research hypothesis is, "Early child adversity makes bipolar disorder more likely." The null hypothesis is, "Early child adversity does not make bipolar disorder more…