Inferential Statistics...
Probability: The probability of the results of a study happening by chance and a one off. Its measured using the P Value. The smaller the P value the more reliable the results. A P value of P less than 0.05 is the normal value psychologists use, this means there is 5% chance of it being chance.
Significant: If your test is significant then you can reject your null hypothesis.
Levels of Measurement:
Nominal: The data is put into catergories for example sorting people by height, tall, medium, short...
Ordinal: Data is ordered in some way e.g alphabetically...
Interval: Data is measured in units of equal interval such as counting correct answers...
Type 1 Error: Rejecting the null hypothesis when you shouldn't,P value is too high...
Type 2 Error: Accepting the null hypothesis when you shouldn't, P value is too low...
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