Types of Variables

Types of Variables (Research Methodology)

Ryan Rey P. Jarina

Discrete 



Are

Variables

variables that can take on only a finite or potentially countable set of  values. Are also called categorical variables.

Discrete 



Are

Variables

variables that can take on only a finite or potentially countable set of  values. Are also called categorical variables.

Continuous 



It

Variable

is one that can take on an infinite set of values between two levels of  the variables. They are the result of measurement.

Independent 





Variable

This is the stimulus variable, which is chosen by the researcher to determine its relationship to an observed phenomena. This is called the cause, object and variate of the investigation. This may be an observed event, factor that is expected to affect another variable.

y = 3 + 2x y = f (x)

Dependent 





Variable

This is the response variable, which is observed and measured to determine the effect of the independent variable. This is sometimes called effect, results, criterion in the study. It is the observed event, factor that is expected to be affected by the independent variable.

Moderate Variable 

This is secondary or special type of  independent variable chosen by the researcher to ascertain if it alters or modifies the relationship between the independent and dependent variable.

y = 3 + 2x y = 3z + 2x

Control 

Variable

This is a variable controlled by the researcher in which the effects can be neutralized by eliminating or removing the variable.

y = 3 + 2x y = 3z + 2x

Intervening 



Variable

variable which interferes with the independent and dependent variables, but its effects can either strengthen or weaken the independent and dependent variables. This is an observed event or factor that is expected to affect possibly the relation between the independent and the dependent variable. A

Y Y

= 3 + 2X

= 3Z + 2X

Effects

of Educational Qualification on Performance

Independent

Intervening

Dependent

Variable

Variable

Variable

Educational

Qualification

Age,

Gender, Civil Status, Experience, Socio-Economic Status, Values, Attitudes toward work

Performance

Effects

of National Elementary  Assessment Test

Independent

Intervening

Dependent

Variable

Variable

Variable

Natioanl Elementary Assessment

Test (NEAT) Percentile Rank

Age,

Gender, Civil Status, Experience, Socio-Economic Status, Attitudes toward the study

Achievement

The Factors that Influence the Performance of a Typical High School English Teacher in the Philippines Independent

Dependent

Variable

Variable

*Factors Identified A. Education-Related Factors Number

of subjects taken in college Grades in English Extent of Advanced Studies in the English Language B. Personal Factor Age, Intelligence Quotient, Disposition

Performance in the Classroom

The Acceptability of Canned Milkfish Independent

Dependent

Variable

Variable

Salmon type, Spanish type, French type, Japanese type

Acceptability

of Canned

 Adequacy of Instructional Materials as Perceived by Science and Mathematics Mentors in the Different Levels of State Universitiesand College SUC¶s Independent

Dependent

Variable

Variable

Science and Mathematics Mentors Qualified Mentors Nonqualified Mentors

Level of State Universities and Colleges Instructional Materials.