Flashcards in Chapter 4 Deck (49)

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1

## What is the major task in measurement?

### It is to represent the research values numerically.

2

## What is the measurement for each person in research?

### It is the data which is to be analysed and reported.

3

## In assigning numbers to a variable, what do we work with?

###
1) The abstract number system:

2) The variable that we wish to measure

4

## What does the abstract number system involve?

### This includes identity, magnitude, equal intervals and true zero.

5

## Why is accurate measurement critical?

### Accurate measurement is critical as an elementary mistake can invalidate a whole research project.

6

## What is the property of a nominal level of measurement?

### Identity

7

## What is the property of an ordinal level of measurement?

### Identity, magnitude

8

## What is the property of a interval level of measurement?

### Identuty, magnitude, equal intervals

9

## What are the properties of a ratio level of measurement?

### Identity, magnitude, equal intervals, true zero point

10

## What are the mathematical operations at a nominal level of measurement?

### None

11

## What are the mathematical operations at the ordinal level of measurement?

### Rank order

12

## What are the mathematical operations at an interval level of measurement?

### Add/subtract

13

## What are the mathematical operations at an ratio level of measurement?

### add, subtract, divide, multiply

14

## What type of data is obtained at a nominal level of measurement?

### Nominal

15

## What type of data is obtained at a ordinal level of measurement?

### Ordered

16

## What type of data is obtained at a interval and ratio level of measurement?

### Score

17

## What are the lowest scale of measurement?

### Nominal scale

18

## Do nominal scales match the number scale well?

### No

19

## What are niominal scales?

### They are naming scales

20

## What are exampoles of nominal scales?

### Brand name choice or political affliation

21

## What is the difference between categories in a nominal scale?

### The differences are qualitative not quantitative.

22

## With a nominal scale, can we assign numbers to different categories?

### Yes

23

## Do nominal scales have no zero point?

### No

24

## Can nominal scales be ordered from low to high?

### No

25

## We a nominal scale can we make assumptions about equal units of measurement for a nominal scale?

### No

26

## What properties do ordinal scales have?

### They have the property of magnitude as well as identity.

27

## What do ordinal scales do?

### They measure a variable in order of magnitude, which larger numbers reprepresening more of the variable than smaller numbers.

28

## What is interval scaling?

### When the measurements convey information about the both the order and the distance between values, we have interval scaling.

29

## Do interval scales have the properties of ordinal scales?

### Yes, they also have equal intervals between consecutive values on the scale.

30