Free SAS Institute A00-282 Exam Questions

During the validation of a SAS dataset that contains adverse event information for a clinical trial, you notice discrepancies in the seriousness criteria flags. What would be the best method to ensure consistency and accuracy in the flags considering CDISC ADaM standards for derived data sets?

You are working on a clinical trial data set in SAS, and you need to create a new variable that captures the number of days since the start of the study. The study start date is available as an automatic variable called `Study_Start_Date`, and each patient's visit date is recorded in a variable called `Visit_Date`. Which of the following code snippets correctly calculates the new variable `Days_Since_Start`?

During a clinical trial, data were collected on a nominal categorical variable indicating patients' blood type (Type A, Type B, Type AB, Type O). The goal is to analyze the distribution of blood types among patients who experienced an adverse event versus those who did not. Which of the following statistical methods BEST suits the objective of comparing the distribution of a nominal categorical variable across two independent groups?

An analyst is working with datetime values and needs to ensure that they are stored in a SAS dataset as per ISO 8601 standards. Which of the following approaches would correctly convert a datetime value from a character string 'YYYY-MM-DDThh:mm:ss' to a SAS datetime value using the ISO 8601 standards?

A clinical trial dataset contains multiple records per subject due to repeated measurements over time. You are tasked with summarizing the number of adverse events (AE) experienced by each subject, categorized by severity (Mild, Moderate, Severe), while accounting for the visit at which the event occurred. Which SAS procedure will allow you to obtain a summarized count of AEs by severity for each visit for all subjects?