Statistics (3)

Question 1

1. What is the function of randomisation?

Answer 1

Ensure all subjects have equal chance of allocation and minimise some bias

Question 2

2. Describe 2 types of randomisation

Answer 2

Fixed and adaptive

Question 3

3. Name 4 types of fixed randomisation

Answer 3

Random Numbers, Simple, Block and Stratified

Question 4

4. Describe adaptive randomisation

Answer 4

Balanced characteristics to maintain similarity during the study

Question 5

5. Describe stratified randomisation

Answer 5

Stria formed containing cofounders
Block randomisation in each stria
Cofounders are equally distributed

Question 6

6. What is minimisation?

Answer 6

Most commonly used form of adaptive randomisation

Question 7

Describe the tests used for categorical data which is:
a) Descriptive
b) Single Group
c) Two Groups (Paired and Unpaired)
d) Over Two Groups (Paired and Unpaired)

Answer 7

a) Mode / Frequency
b) Chi Squared
c) Chi Squared / McNemer’s Test
d) Chi Squared / McNemer’s Test

Question 8

Describe the tests used for normal data which is:
a) Descriptive
b) Single Group
c) Two Groups (Paired and Unpaired)
d) Over Two Groups (Paired and Unpaired)

Answer 8

a) Mean / SD
b) One Sample T-test
c) Students T-test / Repeated samples T-test
d) One way ANOVA / Repeated measures ANOVA

Question 9

Describe the tests used for non-normal data which is:
a) Descriptive
b) Single Group
c) Two Groups (Paired and Unpaired)
d) Over Two Groups (Paired and Unpaired)

Answer 9

a) Median / Range
b) Sign Test
c) Mann-Whitely U test / Wilcoxon’s Matched Pairs Test
d) Kruskal-Wallis ANOVA / Friedman’s Test