Odds Ratio/Clicker questions Flashcards

1
Q

What are examples of univariate statistics?

A

frequency mena, median, mode, standard deviation

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2
Q

What is a bivariate statistic?

A

relationship between 2 variables

chi-square, pearson’s correlation, t-test

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3
Q

WHat is a nominal data?

A

just measures a mere difference
like gender, male/female
yes/no
hometowns

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4
Q

What is an ordinal measure?

A

it’s difference plus rank order

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5
Q

What is an interval measure?

A

it measures differences, rank order and keeps equal distances between values of the variable

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6
Q

What is really the only interval measure we have?

A

IQ

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7
Q

What is a ratio measurement?

A

It’s like interval, but it has a true meaningful zero point

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8
Q

What’s another termf or continuous vs categorical?

A

quantitative vs. dichotomous

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9
Q

What’s the most common stat you’ll see for categorical outcomes?

A

chi-square

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10
Q

What do T tests compare?

A

means between two groups

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11
Q

What is an odds ratio?

A

it’s a measure of association between two variables (like an independent variable and a dependent variable)

it’s the odds that some outcome would occur in the presence of a predictor vs absence of a predictor

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12
Q

If an OR is equal to 1, what does that mean

A

the exposure does not affect odds of outcome

the predictor has no impact

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13
Q

If the OR is greater than 1, what does that mean?

A

exposure is associated wit higher odds of the outcome

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14
Q

What about if the OR is lower than 1?

A

exposure is associated with lower odds of the outcome

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15
Q

Specifically, an odds ratio of 1.67 means what?

A

women are 67% more likely than men to report sadness symptoms

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16
Q

If you have a 2x2 table appropriate, what is the OR equation?

A

AD/BC

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