Chi Square Test Flashcards

1
Q

When do we use Chi square tests?

A

Explore relationships between 2 categorical variables

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2
Q

How do we make a contingency table (list row and column values)

A

Row: dependent

Column: independent

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3
Q

How do you find expected counts?

A

Row total x column total / grand total

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4
Q

How do you find degrees of freedom?

A

(# rows - 1) (# columns - 1)

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5
Q

What are the conditions for a chi square test?

A

No expected cell counts less than 1, 20% of the cell counts have expected cell counts less than 5

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6
Q

Hypotheses

A

H0: there is no association between ____ and ____

Ha: There is an association between _____ and ____

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7
Q

What values do we list for chi square?

A

Test statistic (chi square =__), p-value

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8
Q

Conclusion

A

There is/isn’t sufficient evidence to support that there is an association between ____ and ____

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