Experimental Design Flashcard

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or controlled in an experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by the independent variable.

Front

What type of graph is used to display categorical data?

Back

A bar graph is used to display categorical data, showing the frequency of each category.

Front

What is a qualitative observation?

Back

Qualitative observations are descriptions that cannot be expressed in numbers, focusing on characteristics such as color, texture, and appearance.

Front

What is a quantitative observation?

Back

Quantitative observations are measurements that can be expressed in numbers, such as height, weight, or temperature.

Front

What is the purpose of a control group in an experiment?

Back

The control group is used as a standard for comparison, helping to isolate the effects of the independent variable.

Front

What is a hypothesis?

Back

A hypothesis is a testable prediction about the relationship between the independent and dependent variables.

Front

What is the difference between a line plot and a bar graph?

Back

A line plot displays data points along a number line, while a bar graph uses bars to represent the frequency of categories.

Front

What is the significance of replicating experiments?

Back

Replicating experiments helps to verify results and ensure that findings are reliable and not due to chance.

Front

What is an experiment?

Back

An experiment is a scientific procedure undertaken to test a hypothesis by manipulating variables and observing the outcomes.