Research Methods Flashcards
Chi squared
• Nominal data.
• When you are looking for a difference.
• When you have independent measures.
Mann whitney U
• Data that is at least ordinal.
• Looking for a difference.
• Independent measures.
Wilcoxon
• When we have at least ordinal data.
• Looking for a difference between groups.
• A repeated measures design.
Spearmans
• Data is at least ordinal.
• When you are looking for a relationship.
• Data provides a correlation coefficient.
What act for animal ethics
Animal Scientific Procedures Act 1986
How is Quant data gathered
Via experiments, questionnaires, obervations
Longitudinal
- Long period of time
- study development or change
- can be observations, questionnaires, etc
Cross sectional
Short period
Snapshots
Independent measures or matched pairs
Can look at development
Can manipulate variables
What issues does cross sectional have that longitudinal doesnt
Cohort effects & ppt variables
Why is cross sectional better
Easier to repeat
P<0.05 meaning
Probability that results due to chance = less than 5% etc
Type 1/2 errors
1 False pos
2 false negatives
Grounded theory
- systematic generation of theory from qual data
- inductive method
- key points in transcript marked w codes extracted from text
- codes are grouped into similar concepts
- categories are formed to basis a theory
Content analysis
CONVERTS QUAL TO QUANT
- Familiarise
- Identify themes
- Count how many
(Summative = count nums of specific words then look at where they occur eg who said them)
Types of sampling in observations
Event (tally)
Continuous (everything)
Time (after set intervals)
