"dependent variable" comprises TWO words. Which word do you want in the sentence?
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In a study examining the relationship between exercise and weight loss, the dependent variable would be the amount of weight lost by participants.
The dependent variable is the factor being measured or observed in an experiment, and its value is dependent on the independent variable.
The word you are looking for is "independent variable." This is the variable that is intentionally changed or manipulated by the researcher during an experiment to observe its effect on the dependent variable.
The dependent variable of the Stroop effect is typically the time it takes for an individual to correctly identify the ink color of the written word in a Stroop task. This time is used to measure the interference caused by the conflicting information between the color word and the ink color.
In a word association test with respect to reaction time, the independent variable would be the type of stimulus presented to the participant (e.g., the words used in the test). This is the variable that the researcher manipulates or controls to observe its effect on the dependent variable, which in this case would be the participants' reaction time in providing word associations.
In science, the manipulated variable, also known as the independent variable, is the factor that is deliberately changed by the experimenter to observe its effect on the dependent variable. It is a key part of experimental design to test hypotheses and establish cause-and-effect relationships.