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Null hypothesis for phi-coefficient

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- 1. Null-hypothesis for a Phi-Coefficient Conceptual Explanation
- 2. With hypothesis testing we are setting up a null-hypothesis –
- 3. With hypothesis testing we are setting up a null-hypothesis – the probability that there is no effect or relationship –
- 4. With hypothesis testing we are setting up a null-hypothesis – the probability that there is no effect or relationship – and then we collect evidence that leads us to either accept or reject that null hypothesis.
- 5. As you may recall, a Phi-coefficient is a value that makes it possible to statistically test the relationship between a dichotomous dependent variable and a dichotomous independent variable.
- 6. As you may recall, a Phi-coefficient is a value that makes it possible to statistically test the relationship between a dichotomous dependent variable and a dichotomous independent variable. By dichotomous we mean variables that have only two options (e.g., yes/no, member/nonmember, exists/does not exist, etc.).
- 7. Here is a template for writing a null-hypothesis for a Phi-Coefficient:
- 8. Here is a template for writing a null-hypothesis for a Phi-Coefficient: There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 9. Example 1
- 10. A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation.
- 11. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 12. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 13. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 14. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 15. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 16. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the religious and non-religious affiliation of a person and [insert dependent variable].
- 17. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the religious and non-religious affiliation of a person and [insert dependent variable].
- 18. Problem A researcher wishes to determine if a significant relationship exists between religious and non-religious affiliation and college graduation. Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the religious and non-religious affiliation of a person and college graduation.
- 19. Null-hypothesis for this Problem There is no statistically significant relationship between the religious and non-religious affiliation of a person and college graduation.
- 20. Example 2
- 21. A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican).
- 22. A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). vs. vs.
- 23. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 24. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 25. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 26. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 27. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable].
- 28. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the age and [insert dependent variable]. s
- 29. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the age and [insert dependent variable]. s
- 30. Problem A researcher wishes to determine if a significant relationship exists between age (older than 50 vs. younger than 50) and political affiliation (Democrat vs. Republican). Template for a Phi-Coefficient Null-Hypothesis There is no statistically significant relationship between the [insert independent variable] and [insert dependent variable]. Null-hypothesis for this Problem There is no statistically significant relationship between the age and political affiliation. s
- 31. Null-hypothesis for this Problem There is no statistically significant relationship between the age and political affiliation.

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