Meta analysis Flashcards
what is the process of using meta analysis?
it’s a research method that uses secondary data from a large number of studies which involve the same research questions and methods of research.
meta analysis can involve qualitative analysis. What does this entail?
discussing findings and conclusions of the qualitative data
meta analysis can involve quantative analysis. What does this entail?
statistical analysis of the combined data results to calculate effect size–D of the meta analysis which gives an overall statistical measure of difference or relationship between variables.
what is a strength of meta analysis?
-view data with more confidence
-generalise results across larger populations
what is a weakness of meta analysis?
-prone to publication bias.
-researcher may not select all the relevant studies.
-incorrect conclusions can be drawn.
-leaving out data with negative results.
therefore data will be bias as it only represents some of the relevant data.
what is a case study?
an in depth study over time, of a single individual or small group, undertaken in real life context.
may use variety of methods (questionnaire, interview, obs)
what are the advantages of using a case study?
-rich and interesting data, high degree of ecological validity/realism.
-allows study of rare cases, where large samples cant provide such information.
-starting point for further research
what are the disadvantages of a case study?
-low reliability, due to findings not being able to be replicated.
-may be subjective as the relationship between interviewer can effect results
-time consuming
-large amounts of data may lead to bias in selection.
-lacks population validity, low participant numbers
less scientific, idiographic nature.