What is a limitation of a lab experiment in psychology? Limitation: There is no control over extraneous variables that might bias the results. This makes it difficult for another researcher to replicate the study in
What is a limitation of a lab experiment in psychology?
Limitation: There is no control over extraneous variables that might bias the results. This makes it difficult for another researcher to replicate the study in exactly the same way.
What are the disadvantages of lab experiments?
Disadvantages
- Demand characteristics – participants aware of experiment, may change behaviour.
- Artificial environment – low realism.
- May have low ecological validity – difficult to generalise to other situations.
- Experimenter effects – bias when experimenter’s expectations affect behaviour.
What are the advantages and disadvantages of laboratory experiments?
Laboratory Experiment
| 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 disadvantages of field experiments in psychology?
Disadvantages
- Field experiments make it hard to control extraneous variables which could influence the results.
- With a field experiment, it is difficult to obtain fully informed consent as the experimenter would surely want to preserve the hypothesis in oder to avoid demand characteristics.
What is the advantage of lab experiment?
Theoretical Advantages of Laboratory Experiments Accuracy and Precision– Laboratory experiments allow the precise effects of independent variables on dependent variables to be measured. This in turn makes it possible to establish cause and effect relationships between variables.
What are the three types of experiments?
The three main types of scientific experiments are experimental, quasi-experimental and observational/non-experimental. Of the three, the most detailed experiment is also the one that can show cause and effect. That type is the experimental method, and it is also called a randomized control trial.
What is the main advantage of lab experiments?
What are the strengths and weaknesses of experiments?
Strengths and weaknesses of experimental methods
| 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 the advantages and disadvantages of natural experiments?
Advantages and disadvantages of a natural experiment
| 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 |
Why are field experiments unreliable?
– Precise replication of the natural environment of field experiments is understandably difficult, so they have poor reliability, unlike laboratory experiments where the exact conditions can be recreated.
What are the strengths and weaknesses of experimental design?
What are the limitations of the Asch conformity experiment?
One limitation of the study is that is used a biased sample. All the participants were male students who all belonged to the same age group. This means that the study lacks population validity and that the results cannot be generalized to females or older groups of people.
How often does a person give the wrong answer in a conformity experiment?
Over the 12 critical trials, about 75% of participants conformed at least once, and 25% of participant never conformed. In the control group, with no pressure to conform to confederates, less than 1% of participants gave the wrong answer.
What are the results of the optimum conformity experiment?
Optimum conformity effects (32%) were found with a majority of 3. Increasing the size of the majority beyond three did not increase the levels of conformity found. Brown and Byrne (1997) suggest that people might suspect collusion if the majority rises beyond three or four.
Are there any drawbacks to doing lab experiments?
Although lab experiments have many benefits there are also several drawbacks. A key drawback of conducting a lab experiment is that it is not typical to real life and lacks mundane realism. They are generally set in contrived environments, often strange to the participants taking part.