Flashcards in Research Method: Data analysis Deck (17):

1

## What are the three types of measure of central tendency?

###
mode

median

mean

2

## What are the two measures of dispersion?

###
range

standard deviation

3

## What is a measure of dispersion?

### it informs us how spread out a set of scores are.

4

## Define standard deviation.

### a measure of the variation in a set of scores.

5

## What is the advantage of working out the mode?

### helps to indicate a 'usual' figure

6

## What is the disadvantage of a mode?

### It is unrepresentative a sit doesn't take into account all the scores.

7

## What it the advantage of working out the median?

### it is unaffected by extreme values

8

## What is a disadvantage of the median?

### with lots of scores it can be very time consuming.

9

## What is an advantage of working out the mean?

### it is very representative as it uses every score.

10

## What is a disadvantage of the mean?

### the mean number may not match any of the values in the actual data set.

11

## What is an advantage of the range?

### easy to caculate

12

## What is a disadvantage of the range?

### can be affected by extreme values

13

## What is an advantage of standard deviation?

### each score is taken into account

14

## What is a disadvantage of standard deviation?

### complicated to work out

15

## What is an advantage of bar charts?

### you can visually compare the difference of the IV

16

## What is a positive skew?

### this is where most of the distribution in concentrated towards the left of the graph, resulting in a long tail on the right.

17