Benefits of air quality improvement in Klang Valley Malaysia
The study evaluated the comparative reliability of different question formats of contingent valuation method by resurvey of the same households nine months after their original survey. The test-retest correlations are statistically significant at 1% level. Comparative reliability of different questi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Inderscience
2007
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7675/ http://psasir.upm.edu.my/id/eprint/7675/1/Benefits%20of%20air%20quality%20improvement%20in%20Klang%20Valley%20Malaysia.pdf |
| _version_ | 1848840662238101504 |
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| author | Afroz, Rafia Hassan, Mohd Nasir Awang, Muhamad Ibrahim, Noor Akma |
| author_facet | Afroz, Rafia Hassan, Mohd Nasir Awang, Muhamad Ibrahim, Noor Akma |
| author_sort | Afroz, Rafia |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The study evaluated the comparative reliability of different question formats of contingent valuation method by resurvey of the same households nine months after their original survey. The test-retest correlations are statistically significant at 1% level. Comparative reliability of different question formats has been tested comparing the test-retest correlations of these methods. This test has revealed that there is no significant difference in the test-retest correlations between the different question formats for either level A (reduction of the concentration of PM10 by 10%) or level B (reduction of the concentration of PM10 by 20%) air quality improvement.
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| first_indexed | 2025-11-15T07:30:54Z |
| format | Article |
| id | upm-7675 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:30:54Z |
| publishDate | 2007 |
| publisher | Inderscience |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-76752015-12-08T04:09:08Z http://psasir.upm.edu.my/id/eprint/7675/ Benefits of air quality improvement in Klang Valley Malaysia Afroz, Rafia Hassan, Mohd Nasir Awang, Muhamad Ibrahim, Noor Akma The study evaluated the comparative reliability of different question formats of contingent valuation method by resurvey of the same households nine months after their original survey. The test-retest correlations are statistically significant at 1% level. Comparative reliability of different question formats has been tested comparing the test-retest correlations of these methods. This test has revealed that there is no significant difference in the test-retest correlations between the different question formats for either level A (reduction of the concentration of PM10 by 10%) or level B (reduction of the concentration of PM10 by 20%) air quality improvement. Inderscience 2007 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7675/1/Benefits%20of%20air%20quality%20improvement%20in%20Klang%20Valley%20Malaysia.pdf Afroz, Rafia and Hassan, Mohd Nasir and Awang, Muhamad and Ibrahim, Noor Akma (2007) Benefits of air quality improvement in Klang Valley Malaysia. International Journal of Environment and Pollution (IJEP), 30 (1). pp. 119-136. ISSN 0957-4352 http://dx.doi.org/10.1504/IJEP.2007.014507 10.1504/IJEP.2007.014507 English |
| spellingShingle | Afroz, Rafia Hassan, Mohd Nasir Awang, Muhamad Ibrahim, Noor Akma Benefits of air quality improvement in Klang Valley Malaysia |
| title | Benefits of air quality improvement in Klang Valley Malaysia
|
| title_full | Benefits of air quality improvement in Klang Valley Malaysia
|
| title_fullStr | Benefits of air quality improvement in Klang Valley Malaysia
|
| title_full_unstemmed | Benefits of air quality improvement in Klang Valley Malaysia
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| title_short | Benefits of air quality improvement in Klang Valley Malaysia
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| title_sort | benefits of air quality improvement in klang valley malaysia |
| url | http://psasir.upm.edu.my/id/eprint/7675/ http://psasir.upm.edu.my/id/eprint/7675/ http://psasir.upm.edu.my/id/eprint/7675/ http://psasir.upm.edu.my/id/eprint/7675/1/Benefits%20of%20air%20quality%20improvement%20in%20Klang%20Valley%20Malaysia.pdf |