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25 Cards in this Set
- Front
- Back
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relationship
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In order to determine if and what type of ___ exists between the two variables we use correlations and regression analysis.
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correlations
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___ are standardized values used to describe the relationship between two variables.
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simple linear regression
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___ provides an equation that can be used to predict one variable using another.
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intercept
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The ___ is equal to the value of the outcome, when the IV is 0.
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slope
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The ___ is equal to the unit increase in the outcome for each full unit increase in the IV.
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assumption 1
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A linear relationship must exist between the IV and DV – the simplest way to view this for the SLR is the scatterplot produces a relatively straight line.
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assumption 2
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The variance along the “best fit line” is equal.
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assumption 3
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The values of the DV are normally distributed for any given value of the IV.
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assumption 4
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The IV and DV are continuous variables.
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covariance
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The ___ is a measure of how each of the paired values of the two variables deviate from their respective means simultaneously.
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standardized
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Pearson's r is considered ___ because it is divided by the standard deviation of the outcome (Y).
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step 1 (hypothesis testing)
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State the population being considered and the assumptions being made.
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step 2 (hypothesis testing)
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State the null and research hypothesis.
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Step 3 (hypothesis testing)
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Determine the distribution characteristics and the parameter estimates.
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step 4 (hypothesis testing)
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Determine the critical value.
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step 5 (hypothesis testing)
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Calculate the test statistic.
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step 6 (hypothesis testing)
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Make a decision about the hypothesis and state the interpretation.
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independent samples t-test
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___ answers the question, is there really a statistically significant difference in the means of group 1 and group 2?
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one-way ANOVA
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___ is used to determine if a difference exists between three or more groups.
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paired samples t-test
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___ is used to determine if the difference between two measurements on each subject of a sample is statistically significant.
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single sample t-test
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___ can be used to determine if the difference between the mean of a sample and the hypothesized mean is statistically significant.
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