Types Of Data

Question 1

Qualitative data

Answer 1

Expressed in words, non-numerical

Question 2

Quantitative data

Answer 2

Expressed numerically rather than in words

Question 3

Primary data

Answer 3

First hand from ps, collected specifically for the purpose of the research

Question 4

Secondary data

Answer 4

Data collected by someone other than the person doing the research, original data set collected for a different hypothesis

Question 5

Meta analysis

Answer 5

Collates findings from several studies and then we analyse data as a whole

Question 6

Strengths of qualitative data

Answer 6

Good external validity - more rich detail

Question 7

Weakness of qualitative data

Answer 7

• difficult to analyse - patterns hard to find

- unreliable - conclusions can depend on subjective interpretations

Question 8

Strength of quantitative data

Answer 8

• simple to analyse

- more objective and open to less bias

Question 9

Weakness quantitative data

Answer 9

• poor external validity, narrower meaning fails to represent real life

Question 10

Strengths of primary research

Answer 10

Reliable
Fits the job
Suits hypothesis

Question 11

Weakness primary research

Answer 11

Requires time and effort

Question 12

Strengths of secondary research

Answer 12

Inexpensive
Easily accessed
Desired info existing

Question 13

Weakness secondary data

Answer 13

Variation in the quality and accuracy of research, could be outdated or incomplete, could affect the validity if conclusions

Question 14

Standard deviation

Answer 14

Calculated how far scores deviate from the mean

Question 15

Measures of central tendency

Answer 15

Find the average

Question 16

Mode

Answer 16

The most commonly occurring value

Question 17

Median

Answer 17

The middle value

Question 18

Measures of dispersion

Answer 18

Find the spread

Question 19

Range

Answer 19

The highest value minus the lowest value

Question 20

Mean

Answer 20

The sum of values divided by the number of values there are

Question 21

What are the 3 measures of central tendency

Answer 21

Mean, mode, median

Question 22

What are the 2 measures of dispersion

Answer 22

Range and standard deviation

Question 23

Strength of mean

Answer 23

Most sensitive, uses all scores in data so represents data as a whole

Question 24

Weakness of mean

Answer 24

Distorted by extreme values

Question 25

Strength of mode

Answer 25

Can be used will qualitative data and categories

Not effected by extreme values

Question 26

Weakness of mode

Answer 26

Data doesn’t always have a mode
May be more than one mode
- doesn’t represent data as a whisk

Question 27

Strength of median

Answer 27

Not affected by extreme values

Can be used when data isn’t interval

Question 28

Weakness of median

Answer 28

May not even be in the data if there are an even set of numbers
Isn’t representative of the data as a whole

Question 29

Strength of range

Answer 29

Convenient way to get a quick view of how data is spread

This allows for quick comparisons between groups

Question 30

Weakness of range

Answer 30

Only takes into account the two most extreme values

Outliers May give false view if spread of scores