Practice Quiz

EPPP Psychology

Category - Research Methods and Statistics

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Inferential statistics procedures are used to make inferences about the general population from a study sample. Research in this field is based on a hypothesis that applies to the population and is tested using a sample. There are different types of hypotheses used in research. Which of those states that the independent variable has no effect on the dependent variable?
  1. Alternative hypothesis
  2. Null hypothesis
  3. Rejection hypothesis
  4. Zero effect hypothesis
Explanation
Answer: B - The null hypothesis states that the independent variable has no effect on the dependent variable. Research is conducted with the hope that differences will be found and the null hypothesis can be rejected. The alternative hypothesis states that the independent variable does have an effect on the dependent variable (that there are differences between groups).
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