Basic data analysis and Graphs

Question 1

Quantitative Data

Answer 1

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

Question 2

Qualitative Data

Answer 2

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

Question 3

Primary sources

Answer 3

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

Question 4

Secondary sources

Answer 4

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

Question 5

Frequency tables

Answer 5

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

Question 6

Bar chart

Answer 6

A diagram that represents frequencies of non-continuous data.

Question 7

Line graph

Answer 7

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

Question 8

Histogram

Answer 8

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

Question 9

Pie chart

Answer 9

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

Question 10

Scattergraph

Answer 10

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

Question 11

Normal distribution

Answer 11

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

Question 12

Negatively skewed distribution

Answer 12

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

Question 13

Positively skewed distribution

Answer 13

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

Question 14

Measure of central tendency

Answer 14

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

Question 15

Mean

Answer 15

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

Question 16

Median

Answer 16

The mid-point in a set of data that has been placed in order.

Question 17

Mode

Answer 17

The most common value within a set of data.

Question 18

Measure of dispersion

Answer 18

A measure that shows the spread of data, whether it is tightly clustered or has a broader spread.

Question 19

Range

Answer 19

A value which shows the spread of data, representing the difference between the lowest and highest scores.

Question 20

Standard deviation

Answer 20

A value which represents the amount of variation of results from the mean score.

Question 21

<

Answer 21

Less than

Question 22

>

Answer 22

Greater than

Question 23

≥

Answer 23

Greater than or equal to

Question 24

≤

Answer 24

Less than or equal to