Methods of investigating behaviour Flashcards
1
Q
what is a directional hypothesis
A
- one tailed
- past research already done
- already knows outcome
2
Q
what is a non-directional hypothesis
A
- two tailed
- likely no past research
- no determined outcome - uncertain
3
Q
null-hypothesis
A
- no tail
- there will be no difference or change / effect of IV on DV
4
Q
what is the sample
A
the small group / participants that are representative of the target population
5
Q
what is the target population
A
the group that is being analysed - data from sample generalised for target population
6
Q
what are the different sampling techniques
A
- random
- opportunity
- volunteer
- systematic
- stratified
7
Q
what is opportunity sampling (+ s/w)
A
- immediate - like someone off the street
good = easiest method/ quickest
bad = inadvertently biased
8
Q
what is volunteer sampling (+s/w)
A
- asking for volunteers
good = access to variety of participants/ more representative of TP
bad = bias - participants keener - f u please u
9
Q
what is random sampling (+s/w)
A
- every member of TP could be selected
good = potentially unbiased
bad = takes time and effort
