Paper 1

Question 1

Criteria for non-parametric inferential tests

Answer 1

Mann Whitney U test: ordinal and independent measures.
Chi-squared: nominal and independent measures.
Binomial sign test: nominal and repeated measures.
Spearman’s Rho correlation coefficient: ordinal and correlation test.
Wilcoxon signed ranks test: ordinal and repeated measures.

Question 2

Standard deviation

Answer 2

• Find the mean of the scores
• Do each score - the mean
• Square each result (d^2)
• Add these results together
• do (sum of results) divided by (number of participants - 1)
• This is the variance
• Do the square root of the variance

Question 3

Strength and weakness of nominal data

Answer 3

• Strength: easy to collect (because it only requires a headcount), compared with other participants and to put in graphs.
• Weakness: can only analyse with the mode.

Question 4

Types of data

Answer 4

Qualitative
Quantitative
Primary
Secondary

Question 5

Interval

Answer 5

How much time will you spend at an event?
How many viewers watch this show?

(Time, temperature)

Question 6

Summary of research conducted

Answer 6

Abstract