Karteikarten
topic 26 - data analysis
Karten in diesem Stapel (26)
- 1what is quantitative data?numerical data that can be counted. represents how much, how many, how long etc.
- 2how is quantitative data presented?in tables or granphs
- 3what is qualitative data?express the quality of something. includes descriptions, words, meanings etc.
- 4what can be done with this data?put into quantitative data by placing it in categories
- 5what are the three measures of central tendency?mean median and mode
- 6what are two measures of dispersion?range and standard deviation
- 7what does range show?the difference between the highest and lowest value in a data set
- 8what does standard deviation show?amount of variation in the data set and assesses the data around the mean
- 9what is a strength of quantitative data?its easier to analyse than qualitative data
- 10why?numerical data can be summarised using graphs and measures of central tendency and dispersion
- 11what does this make easier?drawing conclusions
- 12what is a limitation of quantitative data?tends to oversimplify reality and human experience
- 13how does it suggest this?it suggests there are simple descriptions of human behaviours that can be expressed by numbers
- 14what is a strength of qualitative data?it can represent true complexities of human behaviour
- 15how does it do this?it illustrates peoples thought and feelings that cant be done using numbers
- 16what is a problem with using qualitative data?summarising this data can be effected by personal beliefs and expectations
- 17what is a strength of using the mean?it makes use of all the values in the final analysis
- 18what is a limitation of using the mean?it can be mis-representative if the data has extreme values
- 19what is a strength of the median?it isn't affected by extreme scores
- 20what is a limitation of the median?not always as 'sensitive' as the mean because not all values are reflected
- 21what is one strength of the mode?useful when data is in categories
- 22what is a limitation of the mode?it isn't a useful way of describing data when there are several modes
- 23what is a strength of the range?its easy to calculate
- 24what is a limitation of the range?its effected by extreme values
- 25what is a strength of s.d.?a more precise measure of dispersion as all values are used in calculation
- 26what is a limitation of s.d.?it may hide some characteristics of data e.g. extreme values
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- A-Level Psychology A2 (RESEARCH METHODS) Karteikarten am topic 26 - data analysis, erstellt von Charlotte Hewson am 22/04/2015.
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- Charlotte Hewson
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