GATE (Graduate Aptitude Test in Engineering) Psychology Research Methods and Statistics-Designing Research Study Material (Page 3 of 7)

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Hypothesis: Functions & Importance of Hypothesis

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Functions & Importance of Hypothesis

Hypothesis provides answer to problem, which ultimately generates inquiry and drives the research. Hypothesis also:

  • Provides direction to research.
  • Helps in operationalization of the procedure (to accept or refute the hypothesis).
  • Helps in selection of critical research facts.
  • Makes it possible to replicate the research.
  • Helps in drawing appropriate logical conclusions.
  • Prevents review of irrelevant literature.
  • Provides framework to test relevant conclusions.
  • Helps in making deductions & reaching deci

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Hypothesis: Errors in in Accepting or Rejecting Hypothesis

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Errors in in Accepting or Rejecting Hypothesis

There are two significant types of statistical errors. The aim of research is to replace the null hypothesis with alternative hypothesis. Test is conducted (e. g. . blood test, legal trial), and data obtained to study the relation. Result may be negative (i. e. does not indicate disease, guilt) or positive (i. e. it may indicate disease, guilt). Based on the data, researcher can incorrectly select incorrect hypotheses in two ways- thus producing two kinds of errors, “Type I error” and “Type II error”.

Type-I Error

Type-I error is the error of rejecting a null h

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