Why People Test Hypotheses?

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Hypotheses Introduction A hypothesis is a statement that predicts the outcome of an experiment or research. Every experiment must have a hypothesis statement which shows the aim of an experiment. It is usually an educated guess and indicates the expectations of a researcher. Carrying out a number of experiments, can either approve or disapprove a hypothesis(Moschopoulos & Davidson, 1985). A hypothesis is formed after literature study has been finished and the problem of the study stated. There are different types of hypothesis these include, Inductive hypothesis, based on specific observation, deductive hypothesis provides evidence that expands, supports or contradicts a theory. Non-directional hypothesis states the relationship or difference between variables, directional hypothesis defines the desired direction of the relation or difference between the variables. Null hypothesis states that there is either a significant difference between variables or no significant relationship between the variables(Dembo & Peres, 1994). Hypothesis should be specific while its concept should be clear. One should be able to test a hypothesis and should be related to the theory. A hypothesis should recognize certain variables, must be verifiable and must be in simple terms made easy to understand. For example, in the article about the changing roles of teachers in an era of high stakes accountability, it is hypothesized that the teachers have changing roles as high stakes

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