Data Analysis Flashcards
Define quantitative data
Data that can be counted, usually given in numerical form.
Define qualitative data
Data that is expressed in words and is non numerical.
How is the mean calculated?
By adding up all the values in a set of data and dividing by the number of values.
How is the median calculated?
The central value in a set of data when values are arranged from lowest to highest.
How is the mode calculated?
The most frequently occurring value in a set of data.
How is the range calculated?
By subtracting the lowest score from the highest score and adding 1 as a mathematical correction.
Examples of quantitative data
experiment, closed question questionnaire, correlation, structured observation.
Strengths of quantitative data
easy to analyse, objective/scientific, consistent results, less open to researcher bias.
Weaknesses of quantitative data
limited responses, seen as reductionist, lack of detail may reduce understanding.
Examples of qualitative data
interview, open question questionnaire, unstructured observation.
Strengths of qualitative data
more in depth answers, responses not limited to a fixed set, detailed responses lead to a greater understanding.
Weaknesses of qualitative data
harder to analyse, subjective/less scientific, less consistent results, more open to researcher bias.
