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Ultra violet light affects many people, and several experiments may be done to either support or disapprove the hypothesis. Approval of the hypothesis forms a theory that people who are highly exposed to ultra violet light have higher chances of getting skin cancer. Theories on some scientific approach may serve as sources for theories. Observation of people's behavior may lead to development of hypothesis. This includes looking at how people dress during certain times or what they do at certain times of the year. Results obtained over a research or experiment may lead to development of a theory. Experience of the scientists in their work may be a source of hypothesis and theory. Many things happen around that nobody can explain them scientifically. The scientists come with a hypothesis about something and do numerous tests and observations to know how some things happen Eberhardt, 2003()
Role of hypothesis and theory
A theory helps expand our knowledge about information which seems to be obvious. The way in which a research will be done, the manner of conducting investigations and the research subject fully depend on the hypothesis and theory. A theory functions to direct the researchers towards interpreting how results of a certain study were achieved. It is also used to identify the cause of the results. Theories and hypothesis allow researchers to make predictions that are testable. They also help to mould the way people see the world and allows for the formation of principles about certain observations...
One of the most important roles of the hypothesis is to give direction to the research study being undertaken. It provides a framework through which results from the study are organized. A theory can be used to craft null hypothesis. These can be either proved or disapproved by the results obtained after a research Dembo & Peres, 1994()
The relationship between a hypothesis and a theory is that, hypothesis is a speculative guess that needs to be tested. Positive results of the research are accepted this forms the theory. Hypothesis makes predictions about certain specific circumstances while theories predict general terms of events. One of the steps of developing a theory is testing a hypothesis. Verification of the hypothesis forms the basis of developing a theory. Results of a hypothesis can be used in supporting, modifying or rejecting the basic theory Eberhardt, 2003()
References
Dembo, a., & Peres, Y. (1994). A Topological Criterion for Hypothesis Testing. The Annals of Statistics, 22(1), 106-117.
Eberhardt, L.L. (2003). What Should We Do about Hypothesis Testing? The Journal of Wildlife Management, 67(2), 241-247.
Loosen, F. (1997). A Concrete Strategy for Teaching Hypothesis Testing. The American Statistician, 51(2), 158-163.
Moschopoulos, P.G., & Davidson, M.L. (1985). Hypothesis Testing in Anova under Multinomial Sampling. Sankhy?: The Indian Journal of Statistics, Series B (1960-2002), 47(3), 301-309.
People often shift to other jobs when they feel unsatisfied. This is the case for nurses. Nurses have a high turnover rate in not just one country, but internationally. There is growing shortage of nurses because of lack of job satisfaction. Abualrub & Alghamdi performed a study back in 2012 determining whether leadership style had an impact on job satisfaction and retention rates. The article titled "The impact of
High School Longitudinal Study Dataset Using SPSS Software Scenarios 1. This section determines African citizen's perceptions about their current level of democracy. The study uses 2015 Afrobarometer data to determine whether the current level of African democracy is statistically different from the value of 6. Have series of reforms increased African views on the level of democracy? The study uses the following variables to answer the research question: Level of democracy: ten years ago
Prison GED Programs Hypothesis testing of the effectiveness of prison GED programs in reducing recidivism The effectiveness of prison GED programs in reducing recidivism Prison GED programs The General Education Development initialized as GED is a service program of the American Council on Education. The tests in the GED are for measuring the proficiency of the persons taking the test in science, mathematics, writing, social studies and reading (Kaprov & Kaprov, 2009). When the
INVERTED U. HYPOTHESIS It has been established that competitive state-anxiety normally follows a certain pattern of one-sided feelings of anxiety as well as inadequacy that combines with increased arousal of automatic nervous system (Fazey, 2008). Accordingly, the theory of Inverted U. hypothesis was formulated to explain this aspect, and it is widely applied in sports psychology. Inverted U. hypothesis a theory that suggest that there is a relative amount of anxiety
Efficient Market Hypothesis As previously discussed, the weak form efficiency suggests that share prices should follow a random walk, in that each change in share price is unpredictable based on past information. Formally, this is expressed in the following relationship: where the variables are independent and identically distributed random variables representing equity prices at times 1,2,3…,k. So X is the equity price, the equity price at a point in time n and
Unit 3 Question What types of research question(s) can best be addressed through the use of case studies? What are the advantages and disadvantages of the case study approach? The case study approach is favored in many research studies in the social sciences, particularly sociology and anthropology. Case studies are useful in examining questions about a particular social group, and also explain phenomena with multiple causes, such as 'juvenile delinquency.' Finding ways to