Stats Testing

Question 1

Stats table

Answer 1

Levels Test of diff. Test of assoc
If. Unre. Relat. iation
Data. lated. ed
Nom. Chi. Sign. Chi
Squ. Test. Squ
Ord. Mann. Wilc. Spearmans
Whit. oxon. Rho
Int. Unrel. Rel. Pearsons
Ttest. Ttest. R

Question 2

Level of significance

Answer 2

0.05
95% certainty that the results where due to the manipulation of the IV and less than 5% that it was down to chance

Question 3

Nominal data

Answer 3

Categorical
Writing down words

Question 4

Ordinal data

Answer 4

Numerical data
Non fixed increments
Subjective

Question 5

Interval data

Answer 5

Numerical data
Fixed increments
Non subjective

Question 6

Test of difference

Answer 6

2 IV
1 DV

Question 7

Test of correlation

Answer 7

There will be a relationship

Question 8

Unrelated design

Answer 8

Independent groups

Question 9

Related design

Answer 9

Repeated measures
Matched pairs

Question 10

Type 1 error

Answer 10

False positive
Accepting the research hypothesis even though it’s not true
Due to a poor research design or the level of significance being too lenient
Use a more significant level 0.01

Question 11

Type 2 error

Answer 11

Accepting the null hypothesis when the research hypothesis is correct
Due to poor research design or a less stringent level of significance
More lenient level of significance 0.05

Question 12

How to calculate the sign

Answer 12

Write wether or not there is an increase or decrease in score between 2 conditions and then exclude any equals
The smallest of either the + or the - is the sign in the study

Question 13

If you already have the sign how do you calculate if sign is less than it equal to the critical value

Answer 13

Choose the correct level of significance
Get the number of people in the study and then subtract anyone who had no change
Find that number on the graph and then use that to find your critical value