Psychological Investigations

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  • Created by: Leanne
  • Created on: 08-01-13 12:32
What is an opportunistic sample?
Conducting an experiement with people that were there at the time.
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What is a random sample?
every person in the given population has an equal chance of being chosen
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What is a volenteer sample?
People that have volenteered to be part of an experiement.
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What is an independant variable?
The thing the researcher manipulates
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What is a dependant variable?
The thing that is measured
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What is quantitive data?
numbers, percentages, quantites etc..
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What is qualitative data?
word data
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4 ethical issues
Consent, withdrawal, protection from harm, confientiality
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The 3 types of question most likely to be found in a self-report
open and closed questions and a rating scale
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What is an open question?
questions that don't require a fixed response
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What is a closed question?
Have a fixed answer.
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What is meant by reliability?
Conducting the test more than once and getting the same results (consistent results)
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What is validity?
When something measures what it claims to measure.
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Definition of event sampling
observer keeps account of each time a particular behaviour is observed or everytime a behaviour changes
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Definition of time sampling
observer decides on a time interval, such as once a minute, and the observer notes any behaviour and this interval.
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Other cards in this set

Card 2

Front

What is a random sample?

Back

every person in the given population has an equal chance of being chosen

Card 3

Front

What is a volenteer sample?

Back

Preview of the front of card 3

Card 4

Front

What is an independant variable?

Back

Preview of the front of card 4

Card 5

Front

What is a dependant variable?

Back

Preview of the front of card 5
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