Topic 3 Research- Experiment Flashcards
What is the logic of the experimental method
That the scientific manipulates (alters) the variables in which they are interested in, in order to discover what effect they have
By following the experimental method, what can scientists establish
A cause and effect relationship
Lab experiments
What does the cause and effect relationship allow them to predict
Accurately what will happen in the future under specified conditions
Lab experiments
What happens with the experimental group
The quantity of the variables could be varied, carefully measuring and recording any changes
Lab experiments
What happens with the control group
The quantity of the variables are consistent
Lab experiments
What is the independent variable (cause or effect)?
Causal factor
Lab experiments
What is the dependent variable, the cause or effect?
The effect, since it depends on the first variable
Lab experiments
Once a lab experiment has been done …
Key words: replicate, reliable, same steps
Other researchers can replicate it following exactly the same steps, therefore the method is reliable producing the same results each time
Lab experiments
As this is a very detached method …
The researcher merely manipulates the variables and records the results. The scientist’s personal feelings and opinions have no effect on the conduct of the outcome of the experiment
Lab experiments
Which sociologists use this method
Positivists, who see sociology as science ad it is an objective way to conduct research modelled on scientific methodology
Lab experiments
What is the practical reason for why even positivists rarely use lab experiments
-society is very complex and it would be impossible to identify, let alone control all the variables that might impact on behaviour (if people know that they are being researched they might change their behaviour)
Lab experiments- practical reason
What does the small scale nature reduce
The representativeness as they can only ever be based on small samples
Lab experiments- theoretically
What doubts do sociologists have
Doubts about using experiments in human social research as they see them as artificial environments producing artificial results. A lab is not a normal or natural environment and therefore it is unlikely that behaviour in these conditions is true to life and valid
Lab experiments
What is the Hawthorn Effect
If people know they are being studied, this knowledge is likely to impact on their behaviour by changing it
Field experiments
Where do they take place
In the subject’s natural surroundings such as school, rather than an artificial environment to make the research more valid and realistic
Field experiments
What is done to avoid the Hawthorn Effect
Those involved are generally not aware that they are taking part in an experiment
Field experiments
What do some sociologists argue about people not knowing that they are being studied
If is unethical
Field experiments
As these are more realistic …
There is less scope for control over the variables that might be operating
Comparative method
Where is this method carried out
In the mind of the sociologist.
Comparative method
What type of experiment is it
A ‘thought experiment’ and does not involve the researcher actually experimenting on real people at all
Comparative method
What is this method used to discover
Cause and effect relationships
Comparative method
How does the Comparative method work (2)
(A) Identify two groups of people that are alike in all major respects except for one variable we are interested in
(B) Then compare the two groups to see if this one difference between them has any effect
Comparative method
What is good about this experiment
It is ethical- it avoids artificiality and can be used to study past things
Comparative method
What is good about this method
It gives the researcher even less control over variables than do field experiments, so we can be even less certain whether this method has really discovered the cause of something
2 criticisms of field experiments
- difficult to control variables
- many people do not know they are being researched which may be seen as unethical
Lab experiments in education
What did Harvey and Slatin examine
-teacher’s preconceived ideas about pupils of different social classes