types of data Flashcards
qualitative data
expressed in words and non numerical data
what might be shown in qualitative data
written descriptions of thoughts, feelings and opinions
what form of observation is qualitative data
unstructured interview
quantitative data
data that can be counted, usually given as numbers. data is open to being statistically analysed and can easily be converted into graphs and charts etc
what is quantitative data usually used for
gathering numerical data in the form of individual scores from participants
is quantitative or qualitative data best
it depends on the aim of the research. there is often overlap in data being collected such as quantitative data being collected from an experiment may have qualitative data from an interview aswell.
can qualitiative data be converted
qualitative data can be converted into numerical data
primary data
information obtained first hand by the researcher for the purposes of a research study
where is primary data often gathered from
directly from participants as part of an experiment, self-report or observation
secondary data
information that has already been collected by someone else and so pre-dates the current research project
where is secondary data often gathered from
journal articles, books or websites. statistical information held by the government such as population records or employee absences within an organisation
meta-analysis
the process of combining the findings from a number of studies on a particular topic. the aim is to produce an overall statistical conclusion based on a range of studies
how are meta-analysis studies chosen
same aims or hypothesis
how is meta-analysis used in experimental research
where the IV has been measured in the same way, it is possible to perform a statistical analysis and calculate an effect size. which gives an overall statistical measure of difference or relationship between variables across a number of studies
meta-analysis strengths
allows us to create a larger, more varied sample and results can be generalised across much larger populations, increasing validity