Hoofdstuk 13: Data collection Flashcards
Describe a data plan (5)
- Identify: hypothesis, describe sample, control confounders, anylyse bias,…
- Select type of measures: self-reports, observations, records,…
- Selecting instruments: high quality data ?
- Pretest data collection package: with small sample similar to actual sample
- Develop data collection forms and procedurs: simple, confidential, protocol (where,procedurs, FAQ,…)
What are types of self report items ? (2)
Questinaires & interviews
What are the types of structured questions ? strenghts and weakneses
Open ended:
V: rich in date, spontaneous, own words
X:Time consuming to analyse
Closed ended:
V:Easy to administer, high response
X:Difficult to construct, risk ok forgetting anwser, superficial information
Sum up some speciffic types of closed ended questions (8)
- Dicotonomous: 2 options (y or n)
- Multiple choice
- Rank order
- Forced choice: eg statements most close
- Rating: eg 1-10
- Checklist: matrix of questions
- VAS scale
- Event history: event history calender, diarys
sum up the composite scales (3 + 4)
1.Likert type
2.cognitive tests: eg iq, apptitude
3.Neurological: mme
others
4.sementic differential: bipolar adjectives
5.Qsorts: sort questions
6.vignettes: reacts to descriptions
7.Ecological momentary assesment: repeated assement of behavior in real life
what is response set bias ?
= anwsering all questions good or all bad
- can be because of social desirability
- minimize by: using - and+ statements, ensure confidentiality, non judgmental atmosphere
What are structured observations ?
=records biases, action and events
using formal instrmuntes and protocols (eg checklists, rating scales,..)
–> obervational sampling: concerns he behaviors and events to be observes
-time samplng
-event sampling
What is awereness bias ?
=people acting diffrent because they are being observed
explain in vitro and in vivo measuremtns
In vivo: within or on living beings: eg blood pressure
in vitro: outside organism body: eg blood test
