Previous Step Next Protocol Translation and CRF Design Variable Naming and Coding Standards Knowledge Check 30-45 minutes Foundational Step 4 of 4 Flip Cards Knowledge Check 4 / 4 Flip Cards Knowledge Check Listen What is a variable name? A unique, machine-readable identifier assigned to a data element within a database. What is a field label? A human-readable description displayed to users that explains what information should be entered into a data field Why should field labels be descriptive? To help users understand what information should be entered What role does the Data Dictionary play in variable naming? It documents variable names, labels, data types, coding, validation rules, and other metadata. Why should variable names follow a naming convention? To improve consistency and readability Which symbol is commonly used instead of spaces? _ The database uses both visitdate and visit_date for different forms. What issue does this illustrate? Inconsistent naming conventions, which can complicate programming and quality control. Which coded value is preferable for recording a categorical response like participant sex? 1 = Male, 2 = Female, 3 = Other Give one example each of a variable name, a field label, and a coded response. Variable Name: sys_bp, Field Label: Systolic Blood Pressure (mmHg), Coded Response: 1 = Male, 2 = Female, 3 = Other During database validation, reviewers find several duplicate variables with different names representing the same data element. What should be done? Standardize the variable names, remove unnecessary duplicates, update the Data Dictionary, and ensure all systems follow the approved naming convention. Previous Step Log in to track progress Next Lesson
Flip Cards Knowledge Check Listen What is a variable name? A unique, machine-readable identifier assigned to a data element within a database. What is a field label? A human-readable description displayed to users that explains what information should be entered into a data field Why should field labels be descriptive? To help users understand what information should be entered What role does the Data Dictionary play in variable naming? It documents variable names, labels, data types, coding, validation rules, and other metadata. Why should variable names follow a naming convention? To improve consistency and readability Which symbol is commonly used instead of spaces? _ The database uses both visitdate and visit_date for different forms. What issue does this illustrate? Inconsistent naming conventions, which can complicate programming and quality control. Which coded value is preferable for recording a categorical response like participant sex? 1 = Male, 2 = Female, 3 = Other Give one example each of a variable name, a field label, and a coded response. Variable Name: sys_bp, Field Label: Systolic Blood Pressure (mmHg), Coded Response: 1 = Male, 2 = Female, 3 = Other During database validation, reviewers find several duplicate variables with different names representing the same data element. What should be done? Standardize the variable names, remove unnecessary duplicates, update the Data Dictionary, and ensure all systems follow the approved naming convention.