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Questions and Answers
What is a dependent variable in a research study?
What is a dependent variable in a research study?
- A variable that influences other variables
- A variable being measured in an experiment, reflecting an outcome (correct)
- A variable that does not change in an experiment
- A variable that researchers directly control
What is another term for a dependent variable?
What is another term for a dependent variable?
- Outcome variable (correct)
- Confounding variable
- Control variable
- Moderator variable
What is the role of a dependent variable in a research study?
What is the role of a dependent variable in a research study?
- To reflect an outcome and show a response to changes in other variables (correct)
- To control other variables in the study
- To remain constant throughout the experiment
- To influence the independent variable
What distinguishes a dependent variable from an independent variable?
What distinguishes a dependent variable from an independent variable?
What is the main purpose of a dependent variable in an experiment?
What is the main purpose of a dependent variable in an experiment?
What is a moderator variable in the context of the text?
What is a moderator variable in the context of the text?
In an experiment about the effect of temperature on plant growth, what is an example of a control variable?
In an experiment about the effect of temperature on plant growth, what is an example of a control variable?
What is the purpose of control variables in an experiment?
What is the purpose of control variables in an experiment?
What is an extraneous variable in the context of an experiment?
What is an extraneous variable in the context of an experiment?
What is the role of a moderator variable in the context of an experiment?
What is the role of a moderator variable in the context of an experiment?
What is an example of a dependent variable?
What is an example of a dependent variable?
What is an example of an independent variable?
What is an example of an independent variable?
What is a confounding variable also known as?
What is a confounding variable also known as?
What type of variable may make the relationship between the independent and dependent variables weaker than initially predicted or observed?
What type of variable may make the relationship between the independent and dependent variables weaker than initially predicted or observed?
What is the purpose of identifying and handling confounding variables in a study?
What is the purpose of identifying and handling confounding variables in a study?
Study Notes
Understanding Dependent and Independent Variables in Research
- Dependent variable, usually referred to as "Y", is placed on the left-hand-side of the equation.
- Dependent variable may be called the "Y" variable and is usually on the y-axis in graphs.
- Example of a dependent variable: student's test scores influenced by factors like study time, sleep, and stress levels.
- Independent variable is controlled or manipulated by the researcher in a study.
- Independent variable can also be called the explanatory, predictor, right-hand-side, or X variable.
- Independent variables are often referred to as "X" in basic algebraic equations and plotted using the x-axis.
- Examples of independent variables in research: age, temperature, traffic, and coffee consumption.
- Examples of dependent variables in research: plant growth, mood, walking speed, test scores, and hunger levels.
- Confounding variables, also known as "third variables," can influence the dependent variable and cause issues in a study.
- Extraneous variables, such as demand characteristics, experimenter effect, and situational variables, can weaken the relationship between independent and dependent variables in a research experiment.
- Confounding variables can lead to misattribution of results, while extraneous variables can affect the predicted or observed relationship between variables.
- Validity refers to the closeness of results between repeated experiments and is crucial for ensuring the relationship observed between variables is real.
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Description
Test your knowledge of research variables with this quiz. Explore the concept of variables in research studies and understand their role in influencing outcomes.
