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Using experiments in education (ADV - ethical problems (Informed consent…
Using experiments in education
ADV - narrow focus
Allows the researcher to isolate and examine this variable more thoroughly
However, this means that teacher expectations are not seen within the wider process of labelling
ADV - ethical problems
Informed consent in laboratory experiments. EG - nor harvey and Stalin used real pupils so no child suffered.
However, experiments in education do often mean that students will be used. They may not fully understand the effects and consequences of taking part in the study.
Field experments pose major ethical problems. No informed consent means that it is an invasion of the students privacy. Teacher may also have to be decieved in some cases.
mark got put in a spliff
Practical problems
Schools are large, complex institutions in which many variable can affect teacher expectations
Sociologists often want to large scale social factors which affect government policies and educational achievement, which cannot be studied in small-scale laboratory setting.
artificiality
Artificiality of lab experiments often means that they tell us little about the real world.
Reliability
Field experiments are not always very easy to repeat, however they can be repeated in various situations
Lab experiments can be repeated, as the researcher controls the variables and the environment in which the participants are in.
Validity
Field experiments are very valid - in natural surroundings and no hawthornes effect as the participants dont know they are being studied.
Lab experiments are low in validity as the participants know they are being studied.