• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Advantages and Disadvantages of research methods.

Extracts from this document...

Introduction

Advantages and Disadvantages of research methods Laboratory experiments, the features of this research method is that the IV is usually manipulated to cause an effect on the DV, advantages of laboratory experiments is that variables can be controlled easily, the experiment is taken place in a highly controlled environment, choice of participants could be random. With laboratory experiments they can be replicated easily, they also establish a cause and effect, but the disadvantages are that they are low in ecological validity; they are set in artificial environments so therefore effected by mundane realism. The opposing experiment is field; this is set in a natural setting, either familiar surroundings, field experiments are similar to laboratory experiments as they involve control of IV, the use of participants and surroundings, field experiments can also be replicated. Example of Field experiment Abernethy(1940) showed that students performed better if they were tested in the same room where they were taught and tested by the same person. The context same room, same teacher must have been a recall trigger. The main advantage of laboratory experiments is that it is easier to control confounding variables; also another advantage of laboratory is that they can collect a large amount of data that is detailed. ...read more.

Middle

in behaviour (DV), this means you have to take into account social factors the lack of control also takes away internal validity, it isn't easy to replicate. Correlation is a type of experiment; it involves looking for a correlation or association with co-variables, for example, smoking and lung cancer. In this method a numerical value is calculated to represent the degree to which two sets of data are correlated. The term IV and DV are not used because no cause and effect can be calculated. Perfect positive correlation is +1.00, perfect negative correlation is -1.00. Advantages is that it can be used where experimental manipulation would be unethical or impossible, it can be followed be many other correlation experiments to reduce amount of possible relationships, it can rule out casual relationships such as if two variables are not correlated than one cannot cause the other. Disadvantages are that it cannot conclude a cause and effect which means relationships may be due to other extraneous variables. Naturalistic observations is another method, this is when behaviour is observed in a natural environment. ...read more.

Conclusion

Unstructured interviews have fewer questions, and let the interviewee's guide the conversation. Freudian psychologists use this method with patients. There are fewer advantages but importantly quantity of data can be richer and with more quality. The disadvantages, it can be expensive to produce reliable trained interviewers. Interviews may not be comparable because different questions used for different patients, it is also more affected by interviewer bia's. The last method is question survey, this is when participants record there own answers in different ways, there is the option of postal questionnaires which they can do in there own home, or on the street questionnaires. Advantages is that there is a large quantity of data recorded, but disadvantages are that answers may be affected by social desirability bias, also designing questionnaires require considerable skill, so cost time and money. Overall there is a wide selection of different methods of collecting data, some which accelerate in quality and others in quantity. Different experiments are specific for different investigations. Therefore I conclude with a large selection of experimental methods most psychological studies can be carried out! Katherine Harvey 133 ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our University Degree Psychometrics section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related University Degree Psychometrics essays

  1. There are many methods of research. Interviews are useful for both quantitative and qualitative ...

    Observations can produce data that's rich in meaning and may give access to other wise hidden data. Participant observers can often obtain detailed data over of long period of time. Covert participant observation may be the only way of accessing hidden data or hostile groups.

  2. Compare and contrast qualitative and quantitative approaches to research

    made a difference between participants as they did not go through a procedure with everyone. This article however did justify why they did not control the hand washing practice itself, as they did not want to interfere with the actual practice.

  1. Research methods – (Psychology).

    The disadvantages of this method are: - It is not possible to infer cause and effect, it is difficult to replicate and therefore you can't be certain that the result was not a one off, it is not possible to control extraneous variables, observer bias, the observer sees what he/she

  2. Critiquing research papers: methods, methodologies, theoretical perspectives and epistemologies.

    Yates (2004). Methodology and method. The piece of research uses an experimental methodology with the aid of questionnaires as the method to test the hypothesis. Experimental methods most clearly adhere to the assumption of naturalism. Experimental methods rely upon quantitative and numerical evidence and the process of conducting research is often categorized as positivist ideas.

  1. Analyzing the work of Ann Oakley and Liz Kelly. Both The sociology of housework ...

    Eighty percent of these housewives experienced boredom, disintegration and excessive pace, compared with industrial workers whose work is more skilled and not as repetitive. Many complained about not socially interacting properly and so constantly feel lonely, whereas if they went out to work it would give them the chance to take on some form of social relations.

  2. Describe and evaluate the main research methods employed in social sciences.

    However, conclusions drawn for a case study cannot be said to apply to any other case therefore because the case is unrepresentative making it difficult to generalise results. Also because the researcher is concentrating on an individual case their objectivity can be questioned as bias results are a possibility.

  1. 'Personality assessment has been used for some time now in personnel selection.' Critically discuss ...

    The main aspects of the model include: * Openness * Conscientiousness * Extroversion * Agreeableness * Neuroticism.2 The aim of my essay is to discuss in great depth about the different methods of personnel selection used and how effective and efficient they can be on influencing an employer 's decision.

  2. Do Milgram's experiment's tell us anything about why people obey authority outside the laboratory?

    Hamilton (1978) found that when participants are told that they are responsible for what they are doing obedience is significantly reduced. In one of Milgrams experiments the teacher is paired with a confederate who is administering the shocks while the participant just reads word pairs.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work