Page 1 : 3 AND ASSUMPTION, , , , 90 4, HYPOTI, , For example, there is relationship between years of nursing experience ang ;, Job, , _ satisfaction among nurses., Ww Null. and research hypotheses:, © Null hypothesis (HO): It is also known as statistical hypothesis and is used for statist;, _/ testing and interpretation of statistical outcomes. It states the existence of no relatior tical, between the independent and dependent variables. Mship, * For example, there is no relationship between smoking and the incidence of coro, artery disease. Mary, * Research hypothesis (H1): It is also known_as_alternative hypothesis. It states, existence of relationship between two or more variables. “the, For example, there is relationship between smoking and incidence of lung cancer, , A research hypothesis could be simple, complex, directional, nondirectional, associative, or causal. However, it is commonly recommended to use directional research hypothesis i,, , research studies., , Formulating Hypotheses, , ypotheses are usually formulated in quantitative research studies, which investigate the, 1 lay of dependent and independent variables such as experimental and correlation a, dies, while in other studies use of hypothesis is inappropriate. There is no single, way to develop an excellent hypothesis. However, researchers employ inductive and deductive reasoning on available theory and knowledge to formulate a hypothesis. In addition,, there are several factors that must be considered while formulating an excellent research, hypothesis. Some essential points to be considered are discussed below:, , « Hypotheses are always written before starting the study and should not be changed after, cn a results are examined. They are primarily derived from the statement of research, , problem, study variables, operational definitions, and relevant theories., ° null form as well as alternative form for formulating research hypothesis., , fe Statistical logic requires stating the hypothesis in null form, but several research thinkers, eat t it is generally more desirable to state the hypothesis in directional and alterna_ tive forms, when there is reasonable basis for them because these hypotheses clarify study, framework and demonstrate that researchers have thought critically about the phenome, ~ non under study. Furthermore, a review of the current nursing research journals shows that, research hypothesis has replaced the statistical null hypothesis as the preferred way of, pressing the predictions for study. Thus this argument supports that it is better to use, | alternative forms of research hypotheses for research studies., ing four main cor ts of a hypothesis must be considered while formulating, , , , , , , , , , , ypothesis, i present tense. For example,, feeding experiences fewer gastrointes”, bolus nasogastric feeding.