HYPOTHESIS

PRESENTED ByPUNAR DAIMARYI

WHAT IS HYPOTHESIS

A research hypothesis is the statement created by researchers when they speculate upon the outcome of a research or experiment.

Every true experimental design must have this statement at the core of its structure, as the ultimate aim of any experiment.

The hypothesis is generated via a number of means, but is usually the result of a process of inductive reasoning where observations lead to the formation of a theory. Scientists then use a large battery of deductive methods to arrive at a hypothesis that is testable, falsifiable and realistic.

The precursor to a hypothesis is a problem, usually framed as a question.

The precursor to a hypothesis is a research problem, usually framed as a question. It might ask what, or why, something is happening.

TYPES OF HYPOTHESIS

Null Hypothesis Non-directional Hypothesis

Directional Hypothesis Casual Hypothesis

NULL HYPOTHESIS

This is the conventional approach to making a prediction. It involves a statement that says there is no relationship between two groups that the researcher compares on a certain variable. The hypothesis also may state that there is no significant difference when different groups are compared with respect to a particular variable.

NON-DIRECTIONAL HYPOTHESIS Certain hypothesis statements convey

a relationship between the variables that the researcher compares, but do not specify the exact nature of this relationship. This form of hypothesis is used in studies where there is no sufficient past research on which to base a prediction

DIRECTIONAL HYPOTHESIS

This type of hypothesis suggests the outcome the investigator expects at the end of the study. Scientific journal articles generally use this form of hypothesis. The investigator bases this hypothesis on the trends apparent from previous research on this topic.

CASUAL HYPOTHESIS

The researcher states the hypothesis in terms of the effect of variations in a particular factor on another factor. This causal hypothesis is said to be bivariate because it specifies two aspects -- the cause and the effect.

FUNCTION OF HYPOTHESIS

Identification Scientific Method Experiments Formulating

OBJECTIVES OF HYPOTHESIS

Reflect the quistion whose answers the investigator want the study yield.

Can be expressed either in the form of a statement.

Save as the stearing wheel in the conduct research project.

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