In simple terms a variable represents a measurable attribute that changes or varies across the experiment whether comparing results between multiple groups multiple people or even when using a single person in an experiment conducted over time. A research hypothesis suggests the type of data that must be collected and the type of analysis that must be conducted to measure the relationship.

Elements Of Research

According to the roles that variables play in a research they are divided into two categories.

Variables are elements of research which. A variable is a concept that stands for a variation within a class of objects or persons Fraenkel and Wallen 1996. It describes research as a series of linked activities moving from the identification of a problem reviewing the literature specifying the purpose collecting data analyzing and interpreting. For example you might want to test whether students who spend more time studying get better exam scores.

An Independent variable is a variable based on which the dependent variable is predicted. Variables in a research work are widely used to obtain correct inferences. This is reached when the variables are altered measured and manipulated.

The factors that can be measured and manipulated for any scientific experiment or research are research variables. What are the research variables. In science a variable is any element condition or factor that can be controlled varied or measured within an investigation Porto Gardey 2008.

Case Example for Descriptive Study Variables. A variable is a characteristics or property that can take different values or Variables 10. A research hypothesis indicates the major independent variables to be included in the study.

In research variables are any characteristics that can take on different values such as height age species or exam score. Other examples of variables could be number of students who graduate from college income of senior citizens types of. Variable Definition in Research A variable is any property a characteristic a number or a quantity that increases or decreases over time or can take on different values as opposed to constants such as n that do not vary in different situations.

In an experimental research design whenever the independent variables ie treatment variables or factors decisively get altered by researchers then that process is termed as an experimental manipulation. In scientific research we often want to study the effect of one variable on another one. Variables are characteristics studied in research that can take on different values eg weight height exposure to a substance demographics ie where you live your ethnicity how much income you have medical background.

Any factor which takes on different values can be considered as an experimental variable since it influences the results of the investigation or the research. The variables which can not only be ordered but which also permit the measurement of the distance between categories are called intervals for example height weight blood pressure number of deaths. In statistical research a variable is defined as an attribute of an object of study.

Therefore number of gifted students is a variable since it has different values. The participants in an expriment who receives the drug or other treatment under study- that is those who are exposed to the change that the independent variables represent. In scientific research scientists technicians and researchers utilize a variety of methods and variables when conducting their experiments.

A sample or subgroup of the population that possesses the same characteristics of the population. Anything that can take on different values is called a variable. The variables represent a concept of vital importance within a research project they are concepts that form the research hypothesis.

Choosing which variables to measure is central to good experimental design. This variable is chosen manipulated and measured by the researcher aimed at figuring out its relationship with other variables. A research hypothesis identifies facts that are.

The values which any variable can take whether explanatory. Variables are the basic elements which are measured in a study. Accordingly variables are classified into two sets namely dependent and independent variables Cohen Manion Morrison 2000.