Hypothesis quiz

Which of the following is the best example of a testable hypothesis?

• People should exercise more to stay healthy.

• Happiness is the key to success.

• Studying is important for good grades.

• If students eat a healthy breakfast, then they will perform better on math tests.

What is the dependent variable in the following hypothesis?

"If students sleep at least 8 hours per night, then they will score higher on memory tests."

• Time of day the test is taken

• Type of test

• Memory test scores

• Number of hours slept

Which hypothesis contains a clear operational definition of its variables?

• If individuals sleep for at least 8 hours, they will perform 10% better on memory tests.

• If people sleep better, they will have more energy.

• Sleeping is better for the brain.

• If someone gets more rest, they will be more productive.

A good hypothesis should be:

• A question

• A statement that is about a single person

• A statement that is testable and measurable

• A random guess

Which statement best identifies the independent variable?

"If students practice mindfulness meditation, then they will experience lower stress levels."

• Practicing mindfulness meditation

• Lower stress levels

• The number of students

• The definition of mindfulness

What makes the following hypothesis strong?
"If students use flashcards for vocabulary practice, then they will recall more words on quizzes."

• It is an opinion

• It is specific and measurable

• It cannot be tested

• It does not include variables

Which hypothesis is the most testable?

• Students who like math perform better in school.

• Students who study for at least two hours a day score higher on tests.

• Happiness is important for learning.

• Smart students get better grades

What is wrong with this hypothesis?

"If students play video games, they will have better memories."

• It does not define what kind of video games or memory tests are used.

• It is not specific enough.

• It is too long.

• its too short

Which of the following hypotheses is structured correctly?

• If people are kind, then they will be happier.

• If students who sleep at least 8 hours a night, then they will score higher on tests.

• People should be more positive.

• Why is it important for a hypothesis to be measurable?