SAS Institute SAS Institute Certifications A00-280 Questions & Answers

• Question 51:

  This question will ask you to provide lines of missing code. Given the following SCORE data set:

  

  Variable LOCF contains the imputed score that would replace the missing SCORE value (based on last observation carried forward method). Which SAS statements complete the program?

  A. LOCF = lag(score) ; if first.subject then LOCF = . ; if score ^= . then LOCF = score ;

  B. if first.subject then LOCF = . ; if score = . then LOCF = lag(score) ;

  C. retain LOCF ; if first.subject then LOCF = . ; if score ^= . then LOCF = score ;

  D. retain score ; if first.subject then LOCF = . ; if score ^= . then LOCF = score ;

  Correct Answer: C

• Question 52:

  Given the following data set WORK.DM:

  

  Which subjects will appear in the LOG file?

  A. 001 and 004

  B. 001 and 006

  C. 003 and 004

  D. 004 and 006

  Correct Answer: D

• Question 53:

  Given the SAS data set containing subject's phone numbers

  

  What is the value of PHONE2 for subject 005?

  A. (215) 631-9494

  B. 2156319494

  C. (215) 6319494

  D. 631-9494

  Correct Answer: B

• Question 54:

  Given the following vital signs data:

  

  Baseline is defined as the last non-missing value prior to Day 1.

  What is the value for the change from baseline for Week 1 for Subject 2?

  A. -23

  B. 11

  C. -11

  D. 23

  Correct Answer: C

• Question 55:

  The following SAS program is submitted:

  

  What is the value of the variable day when the data step completes?

  A. 1

  B. 6

  C. 7

  D. 8

  Correct Answer: D

• Question 56:

  Given the following SCORE data set: Based on the concept of Last Observation Carried Forward, what will be the value for SCORE for the Week 12

  

  A. 157

  B. 152

  C. missing

  D. 151

  Correct Answer: A

• Question 57:

  This question will ask you to provide a section of missing code.

  Given the input SAS data set LABRAW:

  

  Which DO LOOP will create the output SAS data set WORK.LAB_NEW?

  A. do i=1 to 2; visit=i; date=dat{i}; result=num{i}; output; end;

  B. do i=1 to 2; visit=i; date=dat{i}; result=num{i}; end; output;

  C. do i=1 to 2; do j=1 to 2; visit=i; date=dat{j}; result=num{j}; output; end;

  D. do i=1 to 2; do j=1 to 2; visit=i; date=dat{j}; result=num{j}; end; output; end;

  Correct Answer: A

• Question 58:

  A Treatment-Emergent Adverse Event (TEAE) is commonly defined as any event that occurs on or after the date and time of:

  A. informed consent

  B. baseline assessment

  C. study enrollment

  D. first dose of study drug

  Correct Answer: D

• Question 59:

  Study day is defined as DCMDATE minus RFSTDTC +1

  

  Which statement will compute the study day correctly without producing notes for missing values in the log?

  A. STUDYDAY=DCMDATE-RFSTDTC+1;

  B. STUDYDAY=input(DCMDATE,yymmdd8.)-input(RFSTDTC,date9.)+1;

  C. If RFSTDTC^='' and length(DCMDATE)=8 then STUDYDAY=input(DCMDATE,yymmdd8.)-input(RFSTDTC,date9.)+1;

  D. If RFSTDTC^='' and length(DCMDATE)=8 then STUDYDAY=input(DCMDATE,date9.)- input(RFSTDTC,yymmdd8.)+1;

  Correct Answer: C

• Question 60:

  Given the following data set (AE):

  

  Data will be reported by onset week. Day 1 ?7 is Week 1, Day 8 ?14 is Week 2. Events beyond Day 14 are assigned Week 3 and will be reported as Follow-up events.

  Which statements properly assign WEEK to each event?

  A. if day > 14 then week = 3 ; else if day > 7 then week = 2 ; else if day > 0 then week = 1 ;

  B. if day > 0 then week = 1 ; else if day > 7 then week = 2 ; else if day > 14 then week = 3 ;

  C. select ; when (day > 0) week = 1 ; when (day > 7) week = 2 ; otherwise week = 3 ; end ;

  D. select ; when (day > 14) week = 3 ; when (day > 7) week = 2 ; otherwise week = 1 ; end ;

  Correct Answer: A