Quantitative Research

Question 1

What should we aim to do with quantitative findings

Answer 1

. Falsification
. Establish casual relationships
. Establish variable association

Question 2

What are the 9 steps of the Bradford- hill criteria

Answer 2

. Temporal relationship
. Strength
. Dose response relationship 
. Consistency 
. Plausibility 
. Consideration of alternate explanations
. Experiment 
. Specificity
. Coherence

Question 3

5 keys features of quantitative research

Answer 3

. Measurable
. Aims/hypotheses/variables 
. Standardised
. Outcomes valid and reliable 
. Statistically presented data

Question 4

Ways of expressing data

Answer 4

. Nominal
. Ordinal
. Interval (dispersion)
. Ratio (dispersion)

Question 5

What are approaches to statistical analysis

Answer 5

. Hypothesis testing (p value)

. Estimation (coherent intervals)

Question 6

Hypothesis testing

Answer 6

. Set null
. Set study hypothesise 
. Carry out significance test
. Obtain test statistics
. Compare test statistics to hypothesised critical value 
. Option p value
. Make decision

Question 7

The power

Answer 7

. Chance of being able to detect a difference in study groups
. Percentage