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Questions and Answers
What does a null hypothesis assert?
What does a null hypothesis assert?
Which of the following statements is an example of a directional alternative hypothesis?
Which of the following statements is an example of a directional alternative hypothesis?
What is a characteristic of a non-directional alternative hypothesis?
What is a characteristic of a non-directional alternative hypothesis?
Which statement describes a hypothesis?
Which statement describes a hypothesis?
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In hypothesis testing, what is the focus of the research hypothesis?
In hypothesis testing, what is the focus of the research hypothesis?
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Study Notes
Hypothesis Definition
- A hypothesis is a specific proposition presented for testing through research.
- It's a prediction about the relationship between two or more measurable variables.
- A hypothesis is a declarative statement about the expected relationship or difference between phenomena.
- It's a testable statement reflecting the aims of the study.
Types of Hypotheses
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Null Hypothesis: States there's no relationship between independent and dependent variables. Example: There is no significant difference in the anxiety level of children with high IQs and those with low IQs.
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Alternative Hypothesis: Presumes a relationship exists between variables. This is often the research hypothesis. Example: There is a significant difference in the anxiety level of children with high IQs and those with low IQs.
Alternative Hypothesis Subtypes
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Directional Alternative Hypothesis: Specifies the type of difference between variables. Example: Children with high IQs will exhibit more anxiety than children with low IQs.
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Non-Directional Alternative Hypothesis: Doesn't specify the type of difference. Example: There is a difference in the anxiety level of children with high IQs and those with low IQs.
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Description
This quiz explores the definition and types of hypotheses, including null and alternative hypotheses. It delves into the significance of hypothesis formulation in research and provides examples to illustrate the concepts. Test your knowledge on the foundational elements of hypothesis testing.
