Introduction-An assumption is a realistic expectation which is something that we believe to be true. An assumption is an act of faith which does not have empirical evidence to support it. Assumption provides a basis to develop theories and research instruments and therefore, influence the development and implementation of research process. Definition-Assumptions are statement that is taken for granted or are considered true, even though they have not been scientifically tested. Assumptions are principles those are accepted as being true based on logic or reason, but without proof or verification. Types of assumptions- 1. Universal assumptions are beliefs that are assumed to be true by a large part of society, but testing such assumptions is not always possible. Example: there is a supernatural power which governs this universe. 2. Based on theories-Assumptions may also be drawn from theories. If a research study is based on a theory, the assumption of the particular theory may become assumption of that particular research study. Example: a study based on Roy’s Adaptation Model will use assumption of this particular theoretical model. 3. Needed to conduct a research-Some of the common-sense assumption may be develop to conduct a particular study. Example: prevalence of coronary artery disease is more common among urban people as compared to rural people. 4. Warranted-These are stated along with evidence to support. Example: regular prayers bring success because they boost morale. 5. Unwarranted-These are stated without any supportive Example: almighty God exist everywhere in this universe. Uses of assumptions in research-Research is built upon assumptions since a foundation is needed to move forward. One must assume something to discover something. Assumptions listed in research paper may be good sources of the research topics. Assumptions provide basis to conduct of the research. Tested assumptions through research studies expand the professional body of knowledge. Examples of assumptions-People are aware of the experiences that most affect their life choices. People want to assume control of their own health problems. Stress should be avoided. Health is the priority for most of the people. Increased knowledge about an event lowers anxiety about the event. Receiving health care at home is preferred to receiving health care in an institute. Difference b/w hypothesis and Assumptions- Assumptions are basically beliefs & ideas that we hold to be true. Often with little or no evidence & are not statistically tested in research. Beliefs about the variables. Based on the beliefs, the researchers attempt to discover the correlation. Hypothesis-Hypothesis is a prediction. Can be statistically tested & may be accepted or rejected. Predictions about the relationship of two or more variables. Predict a relation between variables & statistically tested to conclude the study.