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Psychology a2 Paper 4 Research Methods > Statistical Tests > Flashcards

Flashcards in Statistical Tests Deck (13):
1

characteristics of Mann Whitney U test

- measuring a difference

- ordinal or interval data

- indies dang measures design (unrelated)

2

Characteristics of wilcoxon T

- measuring a difference

- ordinal or interval data

- repeated measures design (related)

3

Characteristics of spear mans rho

Measuring a relationship/correlation

Ordinal or interval data

Repeated measures design (related)

4

Characteristics of a chi squared test

Difference AND association

Nominal data

Independent measures (unrelated)

5

Characteristics of a sign test

Measuring a difference

Matched pairs design- related

Nominal data

6

What level of significance is mainly measured?

P<0.05

7

If the result is significant- what hypothesis do you accept or reject?

Reject NULL
Accept alternative

8

What does the P<0.05 significance level mean?

Probability of results occurring by chance is less than 5%

Meaning we're 95% confidence our results are due to main uplifting of the independent variable

9

What is higher significance level- P<0.05 or P<0.01?

P<0.01

10

Why would you use a higher significance level like P<0.01?

Could be repeating a well established theory

11

What is a lower level of significance- P<0.05 or P<0.1?

P<0.1

12

Why would you use a lower level of significance eg P<0.1

If it's a newly established theory and never done before so they don't dismiss it at the 5% level then

13

What happens if results aren't significant at the P<0.05 ?

Null hypothesis retained and reject alternative