WEEK 7 - CLINICAL TRIALS Flashcards
1
Q
How are quantitative data stored in a data set?
A
2
Q
How do descriptive statistics summarise the characteristics of a sample?
A
3
Q
What assumptions apply to the results?
A
- The assumption their groups are comparable (Equality)
- The shape of the data (Normality)
- The nature and direction of causality (Linearity)
4
Q
How sure can we be that results from the sample will generalise to the wider population?
A
5
Q
How is the clinical importance of treatment effects decided?
A
6
Q
How are treatment effects summarised from multiple studies of interventions in a systematic review?
A
7
Q
What is Descriptive statistics
A
-Refer only to the sample, not attempting to generalise beyond the sample
- Results in research reports begin with descriptive statistics and move towards inferential statistics
- are about a sample and conclusions can be drawn accurately only about that sample
8
Q
What is inferential statistics
A
Statistics that attempt to go beyond the sample and help us to infer what happens in the wider population
- statistics explore whether data from samples can be applied to general relevant population
9
Q
What is Central Tendency
A
- Refers to the mid_way point between the highest and the lowest of a sample of scores on a continuous variable
10
Q
What is confidence intervals
A
- ) shows level of uncertainty in applying sample mean to populations
- A CI tells us exactly how uncertain we are – the narrower the CI the better for precision re the population
11
Q
What is clinically important
A
11
Q
What is a forest plot?
A
- records the mean weights for each group, the difference scores and the group sizes numerically in a table
