A variable is a symbolic name associated with a memory location in the computer that can store and change data. Learn about the key attributes, types, and design issues of variables across different programming languages. Learn what variables are and how to use them in Ruby programs. Variables are containers that store and label data in memory, and have different scopes depending on where they are initialized. Learn what a variable is and how to create, use and manipulate variables in different programming languages. A variable is a name that stores a value, and can be used in math operations, strings, loops and if statements. Variables in Research A variable is a characteristic, attribute, or value that can change or vary across participants, objects, or conditions within a research study. Variables allow researchers to quantify or categorize aspects of the subject under investigation, serving as the foundation for data collection and analysis. Variables may represent observable qualities like age or income, as well as abstract constructs like intelligence or satisfaction. Key Features of Variables in Research ...