Research and Design Flashcards
Data
What are the 2 types of data ?
Qualitative
Quantitative
Data
What is Qualitative data?
Opinions and experiences
Data
What is Quantitative data?
Number based data
Data
What is an aim?
Statement of purpose
Data
What is a Hypothesis?
(and the 2 types of hypothesis)
a prediction using both iv and dv (null and experimental)
Data
What is an experimental hypothesis?
It predicts difference
Data
What is a Null hypothesis?
It predicts no difference so can be disproved and operationalised
Data
What is operationalising?
makes something measurable
Data
What is a directional hypothesis
It is one tailed stating something will happen
Data
What is a non-directional hypothesis?
It is two tailed and states that something will happen but not definite as to what
Variables
What is an independent variable?
The manipulated variable
Variables
What is a dependant variable?
The measured variable (depends on independent variable)
Variables
What is an extraneous variable?
Other factors that may influence results
Variables
What is a situational variable?
Variables connected with the research situation
Variables
What are participant variables?
Any characteristics of individual participants. Some may perform better in one condition due to characteristics.
Variables
What are demand characteristics?
When participants try to make sense of the research they begin to act accordingly which makes results invalid
Variables
What are investigator effects?
Results from effect of researchers behaviour and characteristics of investigator.
Variables
What are expectation effects?
Can occur when a researcher is deeply committed to a certain outcome so results become biased
Variables
What is randomisation?
refers to use of chance to reduce researchers influence
Variables
How do you deal with demand characteristics?
Single blind procedure
Double blind procedure
Variables
What is a single blind procedure?
Where participants do not know the hypothesis or which conditions they are in. Minimalised demand characteristics.
Variables
What is a double-blind procedure?
Where neither investigator or participants know hypothesis or conditions.
Sampling
What are the types of sampling?
Random
Systematic
Stratified
Opportunity
Volunteer sampling
Snowball sampling
Sampling
What is population validity?
depends on the choice of population and on the extent to which the study sample mirrors that population.
Sampling
What is random sampling?
Everyone has equal chances of being selected. High population validity
Sampling
What is systematic sampling?
Sampling by every nth person
Sampling
What is stratified sampling?
Its proportional to the population
Sampling
What is opportunistic sampling?
Choosing participants from those who are available