Hypothesis Flashcards
What is an aim?
A statement of a study’s purpose
When do aims need to be stated?
Why?
Before the experiment to show what the study intends to do
What are the 3 types of hypothesis?
One-tailed (directional) hypothesis
Two-tailed (non-directional) hypothesis
Null hypothesis
Define one-tailed (directional) hypothesis?
This is when a hypotheses states the direction of the difference of the relationship between the 2 variables (more/less, higher/lower, faster/slower)
When would you use a one-tailed (directional) hypothesis?
When there is evidence to support your aim
Define two-tailed (non-directional) hypothesis?
This states that there is going to be a change in the relationship but the difference isn’t specified
Define Null hypothesis?
A statement that predicts no difference within the conditions
What do you do if your data doesn’t support your null hypothesis?
You reject it and go with your alternative hypothesis
Give an example of a null hypothesis?
There will be no difference between the 2 conditions
What do you have to have in terms of hypothesis?
A null hypothesis is what we assume will happen
If our data then supports our alternate hypothesis then we reject our null hypothesis