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RESEARCH METHODS :silhouettes: - Coggle Diagram
RESEARCH METHODS
:silhouettes:
EXPERIMENTS
A research situation where the researcher has a high degree of control.
Variables are identified and some are controlled
By manipulating the variables and observing what happens, the researcher can discover cause and effect relationships.
THE TWO MAIN TYPES
Laboratory experiments
- hypothesis is tested under controlled, 'created' environment, focusing on independent and dependent variables.
Field experiments
- hypothesis is tested in the 'real world' and those involved are usually unaware.
VARIABLES
The
independent
variable: is the cause, its value is independent of other variables in your study.
The
dependent
variable is the effect, its value depends on changes in the independent variable.
Laboratory experiments STRENGTHS
Hypothesis is tested under controlled, '
created
' environment, focusing on independent and dependent variables.
They are highly
reliable
- the original experiment can specify precisely what steps were followed in the original experiements.
Can easily identify
cause
and
effect
relationships.
LABORATORY EXPERMENTS WEAKNESSES
Artificially
- its an artificial environment, and its unlikely results can be transferred to the real world.
Hawthorne effect
- the knowledge that youre in an experiement can change ones behaviour.
Consent
- they usually involve deception, which means obtaining informed consent can be difficult or impossible
FIELD EXPERIMENTS STRENGTHS
These are less artificial than lab experiments, because they have more ecological validity.
People do not know they are in an experiment, meaning they wont be the Hawthorne effect.