### Which of the Following Is an Independent Variable in Dr. Lonsbary’s Study?

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In Dr. Lonsbary’s study, an independent variable refers to a factor that is manipulated or controlled by the researcher. It is the variable that the researcher believes has an effect on the dependent variable, which is the outcome or result being measured. To determine which variable is independent in Dr. Lonsbary’s study, we need to analyze the factors being manipulated or controlled by the researcher.

Possible examples of independent variables in Dr. Lonsbary’s study could include:

1. Treatment type: Dr. Lonsbary may be testing the effectiveness of different treatments for a particular condition. In this case, the different treatment types would be the independent variables.

2. Dosage: If the study involves administering medication or another substance, varying dosages would be the independent variable. Dr. Lonsbary could be exploring the effect of different dosages on the outcome.

3. Time: In some cases, the researcher may be interested in studying the effect of a factor over time. In this scenario, time would be the independent variable.

FAQs:

Q: What is the purpose of an independent variable?
A: The independent variable allows the researcher to examine its influence on the dependent variable. By manipulating or controlling the independent variable, researchers can determine its effect on the outcome.

Q: How is the independent variable different from the dependent variable?
A: The independent variable is the factor that is manipulated or controlled by the researcher, while the dependent variable is the outcome or result being measured. The dependent variable is expected to change as a result of the independent variable.

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Q: Can a study have multiple independent variables?
A: Yes, it is possible for a study to have multiple independent variables. Researchers may be interested in examining the combined effects of different factors on the outcome.

Q: How are independent variables selected in a study?
A: The selection of independent variables depends on the research question and the specific aims of the study. Researchers consider relevant factors that they believe may have an impact on the dependent variable.

Q: Why is it important to identify the independent variable in a study?
A: Identifying the independent variable is crucial as it allows researchers to understand the relationship between the manipulated factor and the outcome. It helps in drawing conclusions about causality and provides valuable insights for further research and potential interventions.
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