RM Booklet 3 Flashcards
Two weaknesses of thematic analysis
Very subjective- researchers have to create their own themes - may make it unreliable Hard work
What is content analysis
Content analysis involves quantifying qualitative data through coding units (like coding schemes in observations).
What is reliability
refers to how consistent that measure is at getting the same or similar score.
How to test for reliability
Test-retest reliabilityInter-rater reliability (sometimes called inter-observer reliability).
What is inter-rater reliability
This is usually done with two or more observers watching the same person/behaviour/thing but independently so that they cannot communicate with each other.
What is test-retest
Give someone the same test again to check for consistency.Must wait a significant time before giving them the 2nd test so they can’t remember the answers
What happens at the end of a inter-rater (inter-observer) test
Observers will compare results and complete a statistical test called a correlation coefficient
What is a correlation coefficient, and how do you know when it is reliable
States to what extent, from 0 to 1, observers agreed.A correlation coefficient of +0.8 or above is considered to be reliable/consistent observations.
What does validity mean
refers to whether a measure (in this case, of behaviour) is accurate.
What are the 6 types of validity
Internal validity External validity Face validity Concurrent validity Temporal validity Ecological validity
What is internal validity
to what extent can we confidently say the IV has affected the DV
What is external validity
study resembles the outside world and how much it can applied to it.
What is face validity
On the face of it, does it look like it measures what it claims to measure?
What is ecological validity
solely refers to how the setting or the task relate to real life.
Three ways to improve validity in experiments
Having a control group as well as the experimental groupStandardising the procedure for all groupsUsing single- and double-blind designs in the study
