Hypotheses

What is a null hypothesis

• A hypothesis that does not exist

• A statement that says there will be a relationship between variables

• A statement that says there will be no relationship between variables

• A statement that explains why a relationship between variables cannot exist

What is an alternative hypothesis

• A hypothesis that does exist

• A statement that says there will be a relationship between variables

• A statement that says there will be no relationship between variables

• A statement that explains why a relationship between variables cannot exist

What is a crucial feature of a hypothesis?

• well-worded

• testable

• confusing

• a sure statement

What kind of hypothesis is this:

Predicts an effect of the IV on DV but not the direction of that effect

• Two-tailed

• Null

• One-tailed

What kind of hypothesis is this:

Predicts the direction of the relationship between variables

• Two-tailed

• Null

• One-tailed

What kind of hypothesis is this:

There will be a difference between how much food tall people and short people eat

• Two-tailed

• Null

• One-tailed

What kind of hypothesis is this:

Dogs will be perceived as better pets than cats

• Two-tailed

• Null

• One-tailed

What kind of hypothesis is this:

Eating more candy will lead to greater chance of diabetes later in life

• Two-tailed

• Null

• One-tailed

• Alternative

What kind of hypothesis is this:

There will be no association between running speed and exhaustion levels

• Two-tailed

• Null

• One-tailed

• Alternative

What kind of hypothesis is this:

Any relationship between gender and liking of the colour pink is due to chance

• Two-tailed

• Null

• One-tailed