7/24/2019 Chap11 Measurement

1/29

McGraw-Hill/IrwinCopyright 00! "y #he McGraw-Hill Co$panies, Inc% &ll

Rights Reser'ed%

Chapter 11Chapter 11

MeasurementMeasurement

7/24/2019 Chap11 Measurement

2/29

11-2

Learning Objectives

Understand . . .

The distinction between measuring objects,properties, and indicants of properties.

The simiarities and differences between thefour scae t!pes used in measurement andwhen each is used.

The four major sources of measurementerror.

The criteria for evauating goodmeasurement.

7/24/2019 Chap11 Measurement

3/29

11-"

#easurement

Selecting

measurable phenomena

Developing a set of

mapping rules

Applying the mapping rule

to each phenomenon

7/24/2019 Chap11 Measurement

4/29

11-$

%haracteristics of #easurement

7/24/2019 Chap11 Measurement

5/29

11-&

Leves of #easurement

Ordinal

interval

Ratio

Nominal Classification

7/24/2019 Chap11 Measurement

6/29

11-'

T!pes of (caes

Ordinal

interval

Ratio

Nominal

7/24/2019 Chap11 Measurement

7/29

11-)

*omina (caes

Mutually exclusiveandcollectively exhaustive

categories +hibits the

classificationcharacteristic on!

7/24/2019 Chap11 Measurement

8/29

11-

Leves of #easurement

Ordinal

interval

Ratio

Nominal Classification

Order

Classification

7/24/2019 Chap11 Measurement

9/29

11-

Ordina (caes

%haracteristics ofnomina scae pus anindication of order

/mpies statement ofgreater than and essthan

7/24/2019 Chap11 Measurement

10/29

11-10

Leves of #easurement

Ordinal

interval

Ratio

Nominal Classification

Order

Classification

Order

Classification Distance

7/24/2019 Chap11 Measurement

11/29

11-11

/nterva (caes

%haracteristics of

nomina and ordina

scaes pus the

concept of eualityof interval!

"ual distance

eists between

numbers

7/24/2019 Chap11 Measurement

12/29

11-12

Leves of #easurement

Ordinal

interval

Ratio

Nominal Classification

Order

Classification

Order

Classification Distance

Natural Origin

Order

Classification Distance

7/24/2019 Chap11 Measurement

13/29

11-1"

atio (caes

%haracteristics of

previous scaes pus

an absoute eropoint

+ampes

3 4eight

3 5eight

3 *umber of chidren

11 1$

7/24/2019 Chap11 Measurement

14/29

11-1$

#oving from /nvestigative to

#easurement 6uestions

11 1&

7/24/2019 Chap11 Measurement

15/29

11-1&

(ources of +rror

Respondent

#nstrumentMeasurer

Situation

11 1'

7/24/2019 Chap11 Measurement

16/29

11-1'

+vauating #easurement Toos

CriteriaCriteria

7aidit!

8racticait! eiabiit!eiabiit!

11 1)

7/24/2019 Chap11 Measurement

17/29

11-1)

7aidit! 9eterminants

Content

ConstructCriterion

11 1

7/24/2019 Chap11 Measurement

18/29

11-1

/ncreasing %ontent 7aidit!

ContentLiterature

(earch

Literature

(earch

+pert

/nterviews

+pert

/nterviews

:roup

/nterviews

:roup

/nterviews

6uestion

9atabase

6uestion

9atabase

+tc.+tc.

11 1

7/24/2019 Chap11 Measurement

19/29

11-1

7aidit! 9eterminants

Content

Construct

11 20

7/24/2019 Chap11 Measurement

20/29

11-20

/ncreasing %onstruct 7aidit!

*ew measure of trust*ew measure of trust

;nown measure of trust;nown measure of trust

+mpath!+mpath!

%redibiit!%redibiit!

11 21

7/24/2019 Chap11 Measurement

21/29

11-21

7aidit! 9eterminants

Content

ConstructCriterion

11 22

7/24/2019 Chap11 Measurement

22/29

11-22

vaiabiit!>vaiabiit!

Criterion

11-2"

7/24/2019 Chap11 Measurement

23/29

11-2"

Understanding 7aidit! and eiabiit!

11-2$

7/24/2019 Chap11 Measurement

24/29

11-2$

eiabiit! +stimates

Stability

#nternal

Consistency

"uivalence

11-2&

7/24/2019 Chap11 Measurement

25/29

11 2&

eiabiit! +stimates

Stability

#nternal

Consistency

"uivalence

11-2'

7/24/2019 Chap11 Measurement

26/29

11 2'

eiabiit! +stimates

Stability

#nternal

Consistency

"uivalence

11-2)

7/24/2019 Chap11 Measurement

27/29

11 2)

eiabiit! +stimates

Stability

#nternal

Consistency

"uivalence

11-2

7/24/2019 Chap11 Measurement

28/29

11 2

8racticait!

"conomy #nterpretabilityConvenience

11-2

7/24/2019 Chap11 Measurement

29/29

;e! Terms

/nterna vaidit!

/nterva scae

#apping rues

#easurement *omina scae

Objects

Ordina scae 8racticait!

8roperties

atio scae

eiabiit!

3 +?uivaence

3 /nterna consistenc!3 (tabiit!

7aidit!

3 %onstruct3 %ontents

3 %riterion-reated