research methods Flashcards
1
Q
what is primary data?
A
- gathered first hand from a source directly by the researchers
- questionnaires, observations, content analyses and experiments
- data collected is specifically related to the aims / hypotheses of study
2
Q
what study uses primary data?
A
- Rosenhan 1973
3
Q
what is secondary data?
A
- already gathered by researchers and used by others for further research
4
Q
meta-analysis and secondary data
A
- researchers pool data on a particular topic uses secondary data as the data being studied had not been studied first hand
5
Q
relative cost of primary data
A
- expensive to obtain as each researcher has to start from the beginning of a study finding ppts. , running the study etc.
6
Q
relative cost of secondary data
A
- cheaper as data already exists
7
Q
validity of primary data
A
- gathered first hand following careful operationalisation of variables and carefully chosen procedures
8
Q
validity of secondary data
A
- has been gathered for some other purpose or an unclear purpose has already been analysed bringing subjectivity
9
Q
what are longitudinal designs?
A
- studies same ppts. over long period of time
- development or time based changes can be seen through patterns in measurements of symptoms expression / severity of disorder at a certain interval over time
- best for seeing how a disorder develops
10
Q
strengths of longitudinal designs
A
- ppt. variables are controlled for (validity)
- mundane realism (validity)
- useful for studying development of mental illness
11
Q
weaknesses of longitudinal designs
A
- practical issues
- ethical issues may arise (could be considered intrusive)
- research can become outdated
12
Q
what are cross-sectional studies?
A
- offers a ‘snapshot’ of behaviour within a population at that specific time
- the sample is studied in a single instance and often involves comparing an individual with an clinical condition against a healthy control
13
Q
what is an example of a cross-sectional study?
A
Mynard & Joseph (1997) - investigated whether peer victimisation is positively related to psychosocial maladjustment.
- compared psychosocial maladjustment between victims and bullies
14
Q
strengths of cross-sectional studies
A
- practically more time efficient and cost effective
- more ethical than longitudinal studies (less intrusive)
- high validity
15
Q
weaknesses of cross-sectional studies
A
- cohort bias
- ppt. variables (lowers validity)
- may not be useful beyond snapshot time