最新的 SAS Clinical Trials Programming A00-282 免費考試真題:

1. When writing a validation program using independent programming, which two actions conform to good programming practices?
(Choose two.)

A) Copy statistical code directly from the SAP.
B) Delete subjects from the production side that are causing differences with the validation data set.
C) Ensure the production program has been run prior to compare.
D) Copy statistical code directly from the production program.

2. This item will ask you to determine the missing code.
In the data shown below, each record represents a single treatment period and contains a character SUBJID and non-missing numeric dates EXSTDT and EXENDT.
The Duration of Treatment (in days) for a single period is defined as Treatment End Date - Treatment Start Date + 1. For each subject, the Total Duration (in days) is defined as the sum of durations of treatment across all treatment periods.

Which code segment generates the new data set, EX2, which contains a single record per subject and includes the Duration of Treatment?
data EX2
set EX;
by subjid exstdt exendt;
<insert code here>
run;

A) duration = exendt - exstdt + 1;
TotalDur = TotalDur + duration;
if first.exstdt then TotalDur = duration;
if last.exstdt;
B) retain TotalDur;
duration = exendt - exstdt + 1;
TotalDur = TotalDur + duration;
if first.exstdt then TotalDur = duration;
if last.exstdt;
C) duration = exendt - exstdt + 1;
TotalDur = TotalDur + duration;
if first.subjid then TotalDur = duration;
if last.subjid;
D) retain TotalDur;
duration = exendt - exstdt + 1;
TotalDur = TotalDur + duration;
if first.subjid then Totaldur = duration;
if last.subjid;

3. You are working on validating the ADSL data set which contains the variables subject, sex, age, birth date, baseline height, and baseline weight. These variables are brought in from SDTM, and you derive new variables baseline BMI (from baseline height and weight) and age categorization (from age).

You get the following in the SAS log:

To reconcile this difference, which variable values will be most helpful to provide to the production programmer?

A) SUBJID BLBMI
B) BLBMI
C) SUBJID BLHT BLWT BLBMI
D) AGECAT1 BLBMI

4. Given the following two data sets EX and AE:

Which output data set is produced by the submitted SAS program?

A) Option B
B) Option D
C) Option C
D) Option A

5. The following SAS program is submitted, but fails due to syntax errors.

What is the cause of the syntax errors?

A) The keep= data set option should be (keep=MonthExp*).
B) An array can only be referenced in a KEEP statement and not within a keep= data set option.
C) An array cannot be referenced on a keep= data set option.
D) The keep= data set option should be (keep=MonthExp).

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