*** pre- and post-test***; 
proc import out=test datafile="H:\Common\Institutional Research\Resources\SAS
\SAS Videos\Hyunny\pre and post test\test.xlsx" dbms=xlsx replace; 
RUN;

proc means data = test maxdec=2;
	var pre_: post_:;
	run;

ods graphics off;

PROC TTEST DATA= test;
PAIRED	post_n_analytical	*	pre_analytical			;run;
PROC TTEST DATA= test;
PAIRED	post_n_problem		*	pre_problem			;run;
PROC TTEST DATA= test; 
PAIRED	post_n_quant		*	pre_quant			;run;
PROC TTEST DATA= test; 
PAIRED	post_n_critical		*	pre_critical			;run;
PROC TTEST DATA= test; 
PAIRED	post_n_written		*	pre_written			;run;
PROC TTEST DATA= test; 
PAIRED	post_n_verbal		*	pre_verbal			;run;
run;

*** regression analyses for each outcome***;

ods graphics off;

** OLS regression**; 

proc reg data = test alpha=0.5;
model	post_n_quant		=	female	int	STEM	pre_quant	;
run;
quit;

proc reg data = test alpha=0.5;
model	post_n_analytical	=	female	int	STEM	pre_analytical	;
model	post_n_problem		=	female	int	STEM	pre_problem	;
model	post_n_quant		=	female	int	STEM	pre_quant	;
model	post_n_written		=	female	int	STEM	pre_written	;
model	post_n_verbal		=	female	int	STEM	pre_verbal	;
run;
quit;