- Tighter control of variables. Easier to comment on cause and effect.
- Relatively easy to replicate.
- Enable use of complex equipment.
- Often cheaper and less time-consuming than other methods.
What are the advantages and disadvantages of lab experiments?
| Laboratory Experiment | Advantages Controls extraneous variables Replication is more possible Disadvantages May lack generalisability Low external validity demand characteristics Low mundane realism | Evaluation Although it is extremely reliable, there’s contributing factors in making it less reliable |
What are advantages of lab study?
Lab studies
allow for high control over extraneous variables
. For example, in a simple experiment to test which paper aeroplane flies the furthest, the advantage of doing the study inside, in a controlled environment would reduce the effect that variables such as wind might have on the results.
What is the advantage of laboratory observation?
An advantage to laboratory observations is that
the researchers who are conducting the test can control certain aspects and have all the necessary specialized equipment
.
What is a disadvantage of laboratory experiments?
A disadvantage of laboratory experiments are
demand characteristics
. The participants may be aware that they are participating in an experiment and therefore may behave differently to how they would typically behave. This reduces the validity of the study.
What is a strength of a lab study?
Strength:
It is easier to replicate (i.e. copy) a laboratory experiment
. This is because a standardized procedure is used. Strength: They allow for precise control of extraneous and independent variables. … Limitation: Demand characteristics or experimenter effects may bias the results and become confounding variables.
What are lab experiments used for?
Laboratory experiments are a particular method that
enables the highest level of control for hypothesis testing
. Like other types of experiments, they use random assignment and intentional manipulations, but these experiments are conducted in a room or a suite of rooms dedicated to that purpose.
Can lab experiments be Generalised to real life?
laboratory studies are good at telling whether or not some manipulation of an independent variable causes changes in the dependent variable, but many scholars assume that these
results do not generalize to the “real-world
.” The general concern is that, due to the ‘artificiality’ and ‘simplicity’ of the laboratory, some …
Why do positivists prefer lab experiments?
Positivists favour in
principle because achieves their main goal of reliability
: Careful control over experimental conditions and detachment produce reliable data as other researchers can replicate it, allows researcher to identify and measure behaviour patterns quantitatively and to manipulate variables to establish …
What are the advantages and disadvantages of natural experiments?
| Advantages More natural behaviour/ mundane realism/ ecological validity Lack of demand characteristics Conduct research that is otherwise unethical Disadvantages No control over confounding variables Lack of objectivity when measuring abstract terms | Evaluation |
What are some examples of laboratory observation?
Laboratory observations happen when a person gathers and records information about an experiment within a laboratory setting. Examples of lab observations include
noting the formation of crystals and recording survey results
.
What is an example of laboratory observation?
Laboratory observation, as opposed to naturalistic observation, refers to observing the behavior of subjects that are in a controlled environment. … For instance,
observing children in a classroom setting you will have children sitting down, listening to a teacher, or doing classwork
.
What are the advantages and disadvantages of case study method?
- Intensive Study. Case study method is responsible for intensive study of a unit. …
- No Sampling. …
- Continuous Analysis. …
- Hypothesis Formulation. …
- Comparisons. …
- Increase in Knowledge. …
- Generalization of Data. …
- Comprehensive.
What are the strengths and weaknesses of experimental design?
| Strengths: Weaknesses: | Tighter control of variables. Easier to comment on cause and effect. Demand characteristics – participants aware of experiment, may change behaviour. | Relatively easy to replicate. Artificial environment – low realism. |
|---|
What are weaknesses in experiments?
Weaknesses: The main weakness of the experimental method is
their dependence on what many see as an “artificial” environment
. … Experimental methods require the researcher to identify and control all relevant variables that might distort the apparent relation between independent and dependent variables.
What are the advantages and disadvantages of quasi experimental design?
| Advantages Notes | Can retrospectively analyze policy changes Even if policy implementation is out of your control |
|---|