# Basic data analysis and Graphs Flashcards

Quantitative Data

A type of data that can be measured numerically by the psychologist, so that statistical analysis can be completed

Qualitative Data

A type of data that can be observed, but not measured numerically. It usually takes the form of words, thoughts and feelings, and is difficult to analyse

Primary sources

Information sources/data that is directly collected by the researcher first-hand

Secondary sources

Information sources/data that have not been directly collected /created by the researcher

Frequency tables

A chart/table which shows the rate of occurrence (frequency) for a number of measured values/categories.

Bar chart

A diagram that represents frequencies of non-continuous data.

Line graph

A diagram that shows a linear representation of frequencies of data.

Histogram

A diagram that represents the distribution of frequencies for discrete or continuous data.

Pie chart

A diagram that represents data proportionately, as part of a whole picture of responses.

Scattergraph

A diagram that represents a relationship/correlation between two or more co-variables.

Normal distribution

A type of distribution where the mean, median and mode are equal. This can be referred to as a bell curve.

Negatively skewed distribution

A type of skewed distribution, where the mode is greater than the mean.

Positively skewed distribution

A type of skewed distribution, where the mode is less than the mean.

Measure of central tendency

A form of estimation of a mid-point/average in a set of data.

Mean

The average that is shown by all scores in the data set when they are divided by n.