LC Investigating in Science Quiz

What is the scientific method?

• A method for carrying out scientific research

• A way to cook food

• A type of variable

• A form of bias

Which of the following best describes an independent variable?

• The factor you measure or observe in response to changes

• The factor you change on purpose to test its effect

• The factor you keep the same throughout the experiment

• The method for carrying out research

A good experiment should change only one variable at a time.

• True

• False

What is a dependent variable?

• The factor you change on purpose

• The factor you measure or observe in response to changes in the independent variable

• The factor you keep the same

• The method for carrying out research

Fixed variables are the factors you ______ throughout the experiment to ensure a fair test.

• keep the same

• change

• randomise

• measure

Experimental bias occurs when researchers unconsciously influence their experiment’s results based on their ______.

• expectations or preferences

• measurements

• equipment

• subjects

Which of the following is NOT a way to reduce experimental bias?

• Using controls

• Double blind testing

• Random selection

• Ignoring the results

Confirmation bias can cause researchers to unconsciously construct their experiment in a way that the desired outcome is ______.

• favoured

• ignored

• delayed

• randomized

What is the purpose of a control in an experiment?

• To set a baseline for results

• To change the outcome

• To increase bias

• To measure the dependent variable

What is a placebo in scientific experiments?

• A placebo is a harmless, inactive substitute for the treatment.

• A placebo is a type of medicine that enhances the effect of the actual drug being tested.

• A placebo is a harmful substance given to the experimental group to test for side effects.

• A placebo is a device used to measure the temperature of chemical reactions in experiments.