Paper 1 · Research Aptitude
A null hypothesis is one which states that
AThere is no difference or relationship between the variables ✓ Correct
BIt is exactly the same as the research hypothesis
CIt is subjective in nature
DThere is a definite difference between the variables
Correct answer: (A) There is no difference or relationship between the variables — A null hypothesis states that there is no difference or relationship between the variables, so that is the answer.
Explanation
★A null hypothesis states that there is no difference or relationship between the variables, so that is the answer.
★The null hypothesis is the statement to be tested that assumes no effect.
★So it asserts that there is no real difference or relationship between the variables.
★It is not the same as the research hypothesis, which predicts that a relationship does exist.
★It is not subjective; it is a precise, testable statement.
★It does not assert a definite difference, so the null hypothesis states there is no difference.
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