Inferential Statistics Vocab (Inclass Activity 18)

H₀

States that the difference between sample mean is most likely due to sampling error or chance

Independent variable(IV)

The variable that goes on the X-axis of your graph

two

The appropriate number of samples for conducting a t-test

Nominal

The appropriate level of measurement for the independent variable of a t-test

Interval of Ratio

The appropriate level of measurement for the dependent variable when conducting a t-test

H₁

States that the differ. btw the sample means is too big to be explained by sampling error; and the differ. represents a real differ. in the DV that was caused by the IV

Homogeneity of variance

An assumption of equal spread of scores, or equal variance, for each group in a statistical test

Reject H₀ and Accept H₁

This is our technical hypothesis decisions when t_calc is greater than or equal to t_crit

Fail to Reject H₀

This is our technical hypothesis decision when t_cal is less than t_crit

Dependent variable

This variable goes on the Y-axis of your graph

Standard error of the difference between means

The technical name for the denominator in an independent t-test