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Which of the Following Is a Significant Early Sign of Bronchogenic

question 48

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Which of the following is a significant early sign of bronchogenic carcinoma in a smoker?


Definitions:

Independent Variable

The variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable.

Independent Variables

In experimental research, variables that are manipulated or controlled by the researcher to study their effect on dependent variables.

Dependent Variable

The variable in experimental research that is expected to change as a result of manipulations to the independent variable.

Control Variable

A factor that is kept constant to accurately test the impact of an independent variable on a dependent variable in an experiment.

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