| 释义 |
dependent variable
dependent variablen.1. Mathematics A mathematical variable whose value is determined by the value assumed by an independent variable.2. Statistics The observed variable in an experiment or study whose changes are determined by the presence or degree of one or more independent variables.dependent variable n 1. (Mathematics) a variable in a mathematical equation or statement whose value depends on that taken on by the independent variable: in "y = f(x)", "y" is the dependent variable. 2. (Psychology) psychol statistics the variable measured by the experimenter. It is controlled by the value of the independent variable, of which it is an index depend′ent var′iable
n. a variable in a functional relation whose value is determined by the values assumed by other variables in the relation, as y in the relation y= 3x2. [1850–55] de·pen·dent variable (dĭ-pĕn′dənt) In mathematics, a variable whose value is determined by the value of an independent variable. For example, in the function y = x + 5, y is the dependent variable because its value is determined by the value of x.Thesaurus| Noun | 1. | dependent variable - (statistics) a variable in a logical or mathematical expression whose value depends on the independent variable; "if f(x)=y, y is the dependent variable"variable quantity, variable - a quantity that can assume any of a set of valuesstatistics - a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters |
dependent variable
dependent variable[di′pen·dənt ′ver·ē·ə·bəl] (mathematics) If y is a function of x, that is, if the function assigns a single value of y to each value of x, then y is the dependent variable. dependent variable the measure of the effect of the INDEPENDENT VARIABLE. Thus, in an experiment, or in data analysis, the independent variable (for example, number of years in school) is manipulated, or otherwise controlled, and the effect of this manipulation is seen by the change in the dependent variable (for example, reading proficiency). See also EXPERIMENTAL METHOD.dependent variable
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.de·pen·dent var·i·a·blein experiments, a variable that is influenced by or dependent on changes in the independent variable; for example, the amount of a written passage retained (dependent variable) as a function of the different numbers of minutes (independent variable) allowed to study the passage.dependent variable An objective finding measured in an experiment that is expected to change as a result of an experimental manipulation of the independent variable(s).dependent variable Epidemiology An outcome variable/variables that reflects other, independent, variables in the relationship being studied. See Variable. dependent variable
Dependent variableTerm used in regression analysis to represent the element or condition that is dependent on values of one or more other independent variables.Dependent VariableIn technical analysis, a variable whose value is determined by the value of other variable(s), but plays no part in determining the value of those other variable(s). For example, if a product's price is determined by some equation involving the product's supply and its demand, the price is the dependent variable because the price does not affect the supply or demand.dependent variable A variable affected by another variable or by a certain event. For example, because a stock's price is affected by dividend payments, earnings projections, interest rates, and many other things, stock price is a dependent variable. Compare independent variable.dependent variable a variable that is affected by some other variable in a model. For example, the demand for a product (the dependent variable) will be influenced by its price (the INDEPENDENT VARIABLE). It is conventional to place the dependent variable on the left-hand side of an EQUATION. See DEMAND FUNCTION, SUPPLY FUNCTION.AcronymsSeedeja vudependent variable
Words related to dependent variablenoun (statistics) a variable in a logical or mathematical expression whose value depends on the independent variableRelated Words- variable quantity
- variable
- statistics
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