Sociology-RM-Experiments Flashcards
What are the three types of experiments that sociologists sometimes use?
Laboratory experiments, field experiments, and the comparative method
What two types of group are needed in lab experiments?
An experimental group (where the IV is manipulated), and the control group (to compare results with)
What is the aim of a lab experiment?
To discover a cause-and-effect relationship
What is the logic of the experimental method?
That the scientist manipulates the variables in which they are interested, in order to discover what effect they have. By following this method, the scientist can establish a cause-and-effect relationship. In turn, this will allow them to predict accurately what will halogen in the future under specified conditions
How is reliability tested in lab experiments?
Once an experiment has been conducted, other scientists then replicate it. With lab experiments they can repeat it exactly in every detail. The lab experiment is therefore highly reliable, producing the same results each time
What are the two reasons why lab experiments are high in reliability?
The original experimenter can specify exactly what steps were followed in the original experiment so other researchers can repeat these in the future. Also it is a very detached method: the researcher manipulates the variables and records the results - the scientists’ personal feelings and opinions have no effect on the conduct of outcome of the experiment
What type of sociologist may favour lab experiments?
Positivist sociologists as they favour a scientific approach. The lab experiment has major advantages as it is the method used to identify cause-and-effect in the natural sciences
What are the practical problems of lab experiments?
Society is very complex phenomenon so in practice would be impossible to identify and control all possible variables that might exert influence on something. Also it can’t be used to study the past, as by definition it is impossible to control variables that were acting in the past rather than present. In addition, lab experiments usually only study small-scale social phenomena which reduces representativeness
What are the ethical problems with lab experiments?
Lack of informed consent (difficult with children or other groups who may not understand), deception (Milgram in psychology), and harm (distressed participants in Milgram’s study, though it can be justified by the things we have learnt from it )
What is the Hawthorne effect?
A lab isn’t a normal/natural environment so it’s likely any behaviour in these conditions is also unnatural/artificial. If people do not behave in true-to-life ways, the experiment will not produce valid results. If people know they are being studied, they may behave differently eg trying to guess what the researcher wants them to do and acting accordingly. This seriously impacts the validity of the results. This is the Hawthorne effect
When was the Hawthorne effect first discovered?
Mayo began research into factors affecting workers’ productivity at the Western Electric Company’s Hawthorne plant. Working with five female volunteer workers who knew he was conducting an experiment. Mayo altered different variables such as lighting, heating, rest breaks etc to see the possible effect on volunteers’ output. Productivity actually rose even when conditions were worsened as well as improved, which is why Mayo concluded they were not responding to the variables, but to the fact they were being studied and they wished to please the experimenter
What do interpretivist sociologists argue about lab experiments?
Humans are fundamentally different from plants, rocks and other phenomena studied by natural scientists as we have free will, consciousness and choice. This means our behaviour cannot be understood in terms of cause and effect. Instead it can only be understood in terms of the choices we freely make and so the experimental method is not appropriate for studying humans
What two solutions do interpretivist sociologists give to the problems of lab experiments?
They offer two alternatives. These are field experiments and the comparative method (or ‘thought experiment’)
What two features of field experiments distinguish it from lab experiments?
It takes place in subject’s natural surroundings rather than in an artificial lab environment. Also those involved are generally not aware they are the subjects of an experiment and so there is no Hawthorne effect
What happens in a field experiment?
The researcher manipulates one or more of the variables in the situation to see what effect it has on the unwitting subjects of the experiment. Eg in Rosenhan’s ‘pseudopatient’ experiment where researchers presented themselves at 12 California mental hospitals saying they had been hearing voices - each was then admitted and diagnosed as schizophrenic