independent variable


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variable

 [var´e-ah-b'l]
something that changes; an attribute or property of a person, event, or object that is known to vary in a given study.
dependent variable in a mathematical equation or relationship between two or more variables, a variable whose value depends on those of others; it represents a response, behavior, or outcome that the researcher wishes to predict or explain.
extraneous variable a factor that is not itself under study but affects the measurement of the study variables or the examination of their relationships.
independent variable in a mathematical equation or relationship between two or more variables, any variable whose value determines that of others; it represents the treatment or experimental variable that is manipulated by the researcher to create an effect on the dependent variable.

in·de·pen·dent var·i·a·ble

a characteristic being measured or observed that is hypothesized to influence another event or manifestation (the dependent variable) within a defined area of relationships under study; that is, the independent variable is not influenced by the event or manifestation, but may cause it or contribute to its variation. See: dependent variable.

in·de·pen·dent var·i·a·ble

(in'dĕ-pen'dĕnt var'ē-ă-bĕl)
statistics A variable that is manipulated by the researcher and measured by the effect it has on the dependent variable or variables.

in·de·pen·dent var·i·a·ble

(in'dĕ-pen'dĕnt var'ē-ă-bĕl)
Characteristic being measured or observed that is hypothesized to influence another event or manifestation within a defined area of relationships under study.
References in periodicals archive ?
The table 4.1.1 shows descriptive statistics of total leverage on different independent variables including corruption.
Independent variables were generated as being [X.sub.1]~N(150,35), [X.sub.2]~N(110,25), [X.sub.3]~N(130,30), [X.sub.4]~N(100,15), [X.sub.5]~N(85,20), [X.sub.6]~N(50,10) and correlated to one another ([r.sub.min] =0,400 - [r.sub.max] = 0.900).
The multiple regression results indicate different values for each of the three independent variables, which help in accepting and rejecting the hypotheses.
All three models including independent variables that affect the albumen index were examined in a comparative way.
The next step of the backward stepwise model included all five independent variables. With all independent variables included, the accuracy of the model increased to 81.8%.
For the fiscal years 2001 to 2015, we can measure the strength of each of our independent variables to our dependent variable (i.e.
The independent variables in the equation are Boolean indicator variables (1 or 0 for existence or nonexistence, resp.).
It should be noted that for a solar energy system, the independent variables for modeling should always include some environmental variables, such as solar radiation intensity and ambient temperature [2].
However, the path coefficients for H5, H6, H7, H8 and H9 affirmed that all four independent variables have direct effect on the level of job satisfaction in this model too.
The main advantage of regression analysis consists in the fact that it is a statistical method, which presupposes an estimation of the degree of precision and significance, and it can be used in all types of causal relations on condition that the variable that we have in view depends on independent variables.
As can be seen in chart (4-22), we found that there is a coefficient of positive correlation between the independent variable and control variables with market adjusted yield in accepted companies existing in Iran capital market and its value is 0.601; In chart
Table 1 shows the coded independent variables, the levels of variation in the original values, the amount of alcohol produced and yield responses, expressed as average values of two replications of each fermentation test.

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