Experimental Design Review

What is the purpose of repeated trials in an experiment?

• To ensure the reliability and accuracy of the results by minimizing the effects of random errors.

• To increase the complexity of the experiment.

• To reduce the time taken for the experiment.

• To make the experiment more interesting.

What is a hypothesis?

• A statement that can be tested through experimentation.

• A conclusion drawn from data analysis.

• A predicted outcome or an educated guess of what you think will happen in an experiment.

• A theory that has been proven to be true.

What does the title of an experiment typically include?

• The hypothesis of the experiment

• The effect of the independent variable (IV) on the dependent variable (DV)

• The materials used in the experiment

• The conclusion drawn from the experiment

What are constants in an experiment?

• Constants are the factors that remain the same throughout an experiment to ensure that the test is fair.

• Constants are the variables that change during an experiment to test the hypothesis.

• Constants are the results obtained from the experiment after data analysis.

• Constants are the tools and equipment used to conduct the experiment.

What is the importance of having a clear research question?

• It helps to gather more data than necessary.

• It guides the direction of the experiment and helps to focus the investigation on specific aspects.

• It allows researchers to avoid ethical considerations.

• It makes the research process more complicated.

What is an independent variable?

• The factor that you change or manipulate in an experiment to observe its effect on the dependent variable.

• The variable that remains constant throughout the experiment.

• The outcome that is measured in response to changes in the independent variable.

• The variable that is not affected by any other variables in the experiment.

What is data in the context of an experiment?

• Data refers to the information collected during an experiment, which can be quantitative (numbers) or qualitative (descriptive).

• Data is the hypothesis formulated before conducting an experiment.

• Data is the conclusion drawn after analyzing the results of an experiment.

• Data is the equipment used to conduct an experiment.

What is the dependent variable in an experiment?

• The variable that is manipulated by the researcher.

• The variable that is kept constant throughout the experiment.

• The variable that is measured or recorded during the experiment.

• The variable that influences the outcome of the experiment.

What are levels in the context of an independent variable?

• Different types of independent variables

• The different values or settings of the independent variable that are tested in an experiment.

• The overall outcome of the experiment

• The number of trials conducted in the experiment.

What is the conclusion in an experiment?

• A summary of the results of the experiment and whether the hypothesis was supported or not.

• The initial hypothesis proposed before the experiment begins.

• A detailed analysis of the methods used during the experiment.

• A list of all the materials used in the experiment.