Variable Nondrinker* Drinker* Test Statistic** P value Mean age of mother at birth (years) 28.2 + 4.4 30.1 + 4.4 19.16 12 years 71.1% 77.6%

Variable	Nondrinker*	Drinker*	Test Statistic**	P value
Mean age of mother at birth (years)	28.2 + 4.4	30.1 + 4.4	19.16	<.0001
% of mothers with education > 12 years	71.1%	77.6%	226.9	<.0001
% of mothers who smoked during pregnancy	7.5%	12.0%	100.7	<.0001
Prepregnancy BMI (kg/m2)	23.8 + 4.6	23.7 + 4.3	0.8	0.469

1. Complete the table below by replacing the bracketed text with the relevant information. Use Table above as your source of information. Use the provided completed cells in the matrix to help you fill in the rest of the cells.

Variable 1	Variable 2
Name of Variable 1 (Provide Units or Categories)	Quantitative (continuous) or Categorical?	Name of Variable 2 (Provide Units or Categories)	Quantitative (continuous) or Categorical?	Appropriate Statistical Test to use	Corresponding Research Question	P value
[Insert response.]	[Insert response.]	Drinker type (nondrinker or drinker)	[Insert response.]	Two-sample independent t-test	[Insert response.]	[Insert response.]
[Insert response.]	categorical	[Insert response.]	[Insert response.]	[Insert response.]	Did the amount of education received vary by mothers who drank and those who did not?	[Insert response.]
Pre-pregnant intake of alcohol (drinker vs nondrinker)	[Insert response.]	Smoked during pregnancy (y/n)	categorical	[Insert response.]	[Insert response.]	[Insert response.]
[Insert response.]	[Insert response.]	Age of mother when child is born (years)	quantitative (continuous)	[Insert response.]	[Insert response.]	<.0001