Data Flashcards
(13 cards)
What are the 6 types of data?
> Primary > Secondary > Qualitative > Quantitative > Subjective > Objective
What is primary data?
Data collected directly by the researcher for their own purpose.
E.g. Performance on SACs for a teacher.
What is secondary data?
Data collected by someone other than the original user for their own purpose.
E.g. Exam grades given to school by teacher.
What is qualitative data?
Descriptive data, usually represented in words.
E.g. She did incredibly well on her recent SAC.
What is quantitative data?
Data in quantity or amount, usually represented in numbers.
E.g. She got 94% on her recent SAC.
What is subjective data?
Data that may be open for interpretation or bias.
E.g. Sleep diaries, Questionnaires
What is objective data?
Data that isn’t open for interpretation or bias
E.g. EEGs, EOGs, EMGs
What is standard deviation?
How far the scores within a particular set of scores spread out or deviate from the mean.
Low SD = little spread
High SD = lots of spread
What are the measures of central tendencies?
> Mean (average)
Median (middle score)
Mode (most frequent score)
Range (are between lowest and highest score)
What is correlational research?
The identification and description of a relationship between two variables.
What are the types of correlation?
> Positive: when two variables vary in the same direction.
> Negative: when two variables vary in opposite directions.
> Zero: when the movement of two variables is independent of one another.
What are descriptive statistics?
Used to summarise, organise and describe the data (e.g.: measures of central tendencies, standard deviation).
What are inferential statistics?
Used to analyse the data and give meaning to the results by measuring the likelihood the change in the DV was caused by the IV to rule out other possibilities.
