Unit 2 AOS 3



Advantage

Disadvantage

Objective Data

Information that is observable, measurable and free from personal basis of researcher.

  • Free form personal basis

  • Lacks detail

Subjective

Information that is based on personal perception, opinion and interpretation.

  • More detailed

  • More difficult to interpret




Advantage

Disadvantage

Qualitative Data

Information that is expressed numerically, summarising how much or how many there is of something.

  • Easier to summarise

  • Cant indicate richness of data

Quantitative Data

Information that is not expressed numerically, describing the quality or characteristics of what is being studied.

  • Deeper insight through data

  • Cant apply statistics



Advantage

Disadvantage

Primary Data

Information collected directly from the source by the researcher for their own specific purpose.

  • Tailored information

  • Reliable quality

  • Time consuming to collect

Secondary

Information that was not directly collected by the current researcher but by someone else earlier.

  • Less time to collect

  • Collected for other purposes


Statistics + Evaluation

Mean: the average

Median: middle value

Mode: most common value