SASInstitute A00-280 問題集

質問 1：
Given two data sets with the following variables:

Why is the blue note showing in the log?
A. One of the two data sets has multiple observations with the same value for SUBJI
B. The variable VISIT occurs in both data sets but is not included in the BY statement.
C. There are multiple observations with the same value for SUBJID in both data sets.
D. There are no observations with matching values for SUBJID in either data set.
正解：C

質問 2：
Which validation technique involves two programmers writing separate programs to produce the same output, then comparing the result?
A. Independent Programming
B. Peer Matching
C. Identical Programming
D. Peer Review
正解：A

質問 3：
The VISIT data set is multiple records per subject, sorted by usubjid vistdtc vistm and contains the following variables:

The DEATH data set is one record per subject, sorted by usubjid vistdtc vistm and contains the following variables:

Which program will combine the DEATH and VISIT data sets by matching records?
A. data data_1; set death visit; by usubjid vistdtc vistm; run;
B. data data_1; merge death visit; run;
C. data data_1; merge death visit; by usubjid vistdtc vistm; run;
D. data data_1; merge death visit; by usubjid vistm vistdtc; run;
正解：C

質問 4：
From the Statistical Analysis Plan, patients age is calculated as an integer relative to date randomized divided by 365.25. Given the following annotated CRF:

Which programming code defines the patient's age?
A. age = int((birthdt-randdt)/365.25);
B. age= int(yrdif(birthdt,randdt, "act/365.25" ));
C. age = int((randdt-birthdt)/365.25);
D. age = int((today()-birthdt)/365.25);
正解：C

質問 5：
Given the following data set:

Which program was used to prepare the data for this PROC PRINT output?
A. proc sort data=one out=two;
by subjid;
run;
B. proc sort data=one out=two nodupkey;
by subjid trt;
run;
C. proc sort data=one out=two nodup;
by subjid;
run;
D. proc sort data=one out=two nodupkey;
by subjid;
run;
正解：D

質問 6：
Given the data set WORK.BP with the following variable list: Which output will be created by the program?


A. Option A
B. Option C
C. Option D
D. Option B
正解：C

質問 7：
Given the following demographic dataset: Which program will generate a report where observations will appear in order by SITE SUBJECT and display column headers for each variable defined in the column statement?

A. Proc Report ;
column site subject trt age gender race ;
define site/order style(header)={'Site'} ;
define subject/order style(header)={'Subject'} ;
define trt/style(header)={'Treatment'} ;
define age/style(header)={'Age'} ;
define gender/style(header)={'Gender'} ;
define race/style(header)={'Race'} ; run;
B. Proc Report ;
column site subject trt age gender race ;
define site, subject, trt, age, gender, race ;
by site subject ;
title 'Site Subject Treatment Age Gender Race' ;
run;
C. Proc Report ;
column site subject trt age gender race ;
define site/'Site', subject/'Subject',
trt/'Treatment', age/'Age', gender/'Gender',
race/'Race' ;
run;
D. Proc Report ;
column site subject trt age gender race ;
define site/order 'Site' ;
define subject/order 'Subject' ;
define trt/'Treatment' ;
define age/'Age' ;
define gender/'Gender' ;
define race/'Race' ;
run;
正解：D