Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Standard text messaging rates apply

# Measurement ans scale

1,918
views

Published on

Measurement and scaling

Measurement and scaling

Published in: Education

6 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
Views
Total Views
1,918
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
0
2
Likes
6
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. MEASUREMENT DESIGNS
• 2. Measurement
• It is the process observing and recording that are collected as apart of research effort.
• 3. Level of measurement
• NOMINAL SCALE
• ORDINAL SCALE
• INTERVAL SCALE
• RATIO SCALE
• 4. NOMINAL SCALE
• Not really a scale because it don’t scale objects along any dimensions.
• It simply label objects.
• Mutually exclusive.
• Gender is an example of nominal scale
• Male = 1
• Female = 2
• 5. Religious Affiliation
• Hindu = 1
• Muslim = 2
• Sikh = 3
• Other = 4
• Categorical data are measured on nominal
• scales which merely assign labels to distinguish categories.
• 6. ORDINAL SCALE
• Meets all the nominal condition and also includes ordering…
• Data used must be having transitivity property
• No determination of distance between positions on the scale
• 7. Examples
• Restaurant rating
• Objectives Rank
• Quality .…
• Cost .…
• Flexibility ….
• Dependability ….
• 8. INTERVAL SCALE
• All the property of ordinal scale but the
• interval between the successive positions are equal.
• No true zero exist.
• E.g. Temperature and year
• 9. RATIO SCALE
• Attributes of interval scale and exist zero
• point.
• E.g. Age, income,height and weight.
• 10. Ordering of level of measurement
• 11. Scaling
• Scaling is the branch of measurement that involves the construction of an instrument that associates qualitative constructs with quantitative metric units.
• A scale is an instrument which measures subjective variables.
• 12.
• Means of measuring attitude
• It is made up of statements about a particular issue, and
• each statement has a numerical value indicating how
• favorable or unfavorable it is judged to be .
Thurstone scaling
• 13. E.G. Attitudes that people might have towards persons with AIDS.
• 14. Some statements are…
• People get AIDS by engaging in immoral behavior
• You can get AIDS from toilet seats
• AIDS is the wrath of God
• Anybody with AIDS is either gay or a junkie
• AIDS is an epidemic that affects us all
• People with AIDS are bad
• People with AIDS are real people
• AIDS is a cure, not a disease
• You can get AIDS from heterosexual sex
• People with AIDS are like my parents.
• You can get AIDS from public toilets
• Women don’t get AIDS
• AIDS costs the public too much
• AIDS is something the other guy gets
• Living with AIDS is impossible
• Children cannot catch AIDS
• 15. Rating the scale items…
• 16. PLOT THE GRAPH
• 17.
• Calculate the median and interquartile range(Q3-Q1) for each statement.
• Figure out table for it.
• 18. Make table Statement Number Median Q1 Q3 Interquartile Range 10 10 6 10.5 4.5 7 10 7.5 11 3.5 46 10 8 11 3 5 10 8.5 11 2.5
• 19. Guttman scaling
• In this items ranges from least extreme to most extreme position.It is implicit that those who agree with a more extreme position also agree with the less extreme positions preceding it.
• We develop a set of items or statements so that a respondent who agrees with any specific question in the list will also agree with all previous questions.
• 20. E.g. Measures U.S. citizen attitudes towards immigration. There are list of statements :
• I would permit a child of mine to marry an immigrant.
• I believe that this country should allow more immigrants in.
• I would be comfortable if a new immigrant moved next door to me.
• I would be comfortable with new immigrants moving into my community.
• It would be fine with me if new immigrants moved onto my block.
• I would be comfortable if my child dated a new immigrant.
• 21. Develop the cumulative scale
• 22. Hypothetical immigration scale
• I believe that this country should allow more immigrants in.
• I would be comfortable with new immigrants moving into my community.
• It would be fine with me if new immigrants moved onto my block.
• I would be comfortable if a new immigrant moved next door to me.
• I would be comfortable if my child dated a new immigrant.
• I would permit a child of mine to marry an immigrant.
• 23. Likert scale
• A rating scale designed to measure attitude or reaction by quantifying subjective information.
• Participants indicate where along a continuum their attitude or reaction resides.
• 24. To create set of potential scale items
• 25. Rating the items 1= strongly unfavorable to the concept 2= somewhat unfavorable to the concept 3= undecided 4= somewhat favorable to the concept 5= strongly favorable to the concept
• 26. Administrating the scale On a 1-5 response scale : 1= strongly disagree 2= disagree 3= undecided 4= agree 5= strongly agree
• 27.
• QUERY
• 28.
• THANK YOU