Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research

Assessing building user needs and preferences is widespread and often questionnaire surveys are applied in order to assess environmental perception and satisfaction. A central question in this context is the quality of the questionnaires used, but little is known regarding their reliability. The pre...

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Main Authors: Karin Schakib-Ekbatan, Sabine Lechner, Marcel Schweiker
Format: Article
Language:English
Published: Frontiers Media S.A. 2019-10-01
Series:Frontiers in Built Environment
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fbuil.2019.00117/full
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author Karin Schakib-Ekbatan
Sabine Lechner
Marcel Schweiker
Marcel Schweiker
author_facet Karin Schakib-Ekbatan
Sabine Lechner
Marcel Schweiker
Marcel Schweiker
author_sort Karin Schakib-Ekbatan
collection DOAJ
description Assessing building user needs and preferences is widespread and often questionnaire surveys are applied in order to assess environmental perception and satisfaction. A central question in this context is the quality of the questionnaires used, but little is known regarding their reliability. The present study addresses interdisciplinary aspects such as engineering and psychological sciences to answer the questions: Are the same item sets applicable in various settings (e.g., seasons)? Is there any difference in the reliability of item sets assessing user satisfaction in field vs. laboratory research? In the present study, reliability analyses of an item set regarding satisfaction with indoor climate including the ASHRAE thermal sensation scale (single-item) as well as the thermal preference question were conducted with respect to season, office type, age group, and sex. Field data were gathered via post occupancy evaluation from 46 office buildings in Germany. Additionally, comparable items from laboratory research were subjected to a reliability analysis. Results revealed predominantly good to excellent Cronbach's alpha values for the field studies. The values from the laboratory study were lower, although comparable (acceptable), partly due to the differences in variation in responses in field vs. laboratory settings. Results showed that questionnaires assessing user's satisfaction need to be set in relation with the given context for reliable interpretation. Further research could validate our results with larger samples for laboratory data. Interdisciplinary research is necessary in order to further develop methodological approaches in the field of user comfort research.
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spelling doaj.art-a1560f05a6c9407bbd062ef672d34efa2022-12-22T02:20:15ZengFrontiers Media S.A.Frontiers in Built Environment2297-33622019-10-01510.3389/fbuil.2019.00117490767Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory ResearchKarin Schakib-Ekbatan0Sabine Lechner1Marcel Schweiker2Marcel Schweiker3Building Science Group, Karlsruhe Institute of Technology, Karlsruhe, GermanyBuilding Science Group, Karlsruhe Institute of Technology, Karlsruhe, GermanyBuilding Science Group, Karlsruhe Institute of Technology, Karlsruhe, GermanyHeidelberg Academy of Sciences and Humanities, Heidelberg, GermanyAssessing building user needs and preferences is widespread and often questionnaire surveys are applied in order to assess environmental perception and satisfaction. A central question in this context is the quality of the questionnaires used, but little is known regarding their reliability. The present study addresses interdisciplinary aspects such as engineering and psychological sciences to answer the questions: Are the same item sets applicable in various settings (e.g., seasons)? Is there any difference in the reliability of item sets assessing user satisfaction in field vs. laboratory research? In the present study, reliability analyses of an item set regarding satisfaction with indoor climate including the ASHRAE thermal sensation scale (single-item) as well as the thermal preference question were conducted with respect to season, office type, age group, and sex. Field data were gathered via post occupancy evaluation from 46 office buildings in Germany. Additionally, comparable items from laboratory research were subjected to a reliability analysis. Results revealed predominantly good to excellent Cronbach's alpha values for the field studies. The values from the laboratory study were lower, although comparable (acceptable), partly due to the differences in variation in responses in field vs. laboratory settings. Results showed that questionnaires assessing user's satisfaction need to be set in relation with the given context for reliable interpretation. Further research could validate our results with larger samples for laboratory data. Interdisciplinary research is necessary in order to further develop methodological approaches in the field of user comfort research.https://www.frontiersin.org/article/10.3389/fbuil.2019.00117/fullfield studylaboratory studyquestionnairereliabilityindoor climateuser satisfaction
spellingShingle Karin Schakib-Ekbatan
Sabine Lechner
Marcel Schweiker
Marcel Schweiker
Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
Frontiers in Built Environment
field study
laboratory study
questionnaire
reliability
indoor climate
user satisfaction
title Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
title_full Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
title_fullStr Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
title_full_unstemmed Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
title_short Reliability of an Item Set Assessing Indoor Climate in Offices—Results From Field Studies and Laboratory Research
title_sort reliability of an item set assessing indoor climate in offices results from field studies and laboratory research
topic field study
laboratory study
questionnaire
reliability
indoor climate
user satisfaction
url https://www.frontiersin.org/article/10.3389/fbuil.2019.00117/full
work_keys_str_mv AT karinschakibekbatan reliabilityofanitemsetassessingindoorclimateinofficesresultsfromfieldstudiesandlaboratoryresearch
AT sabinelechner reliabilityofanitemsetassessingindoorclimateinofficesresultsfromfieldstudiesandlaboratoryresearch
AT marcelschweiker reliabilityofanitemsetassessingindoorclimateinofficesresultsfromfieldstudiesandlaboratoryresearch
AT marcelschweiker reliabilityofanitemsetassessingindoorclimateinofficesresultsfromfieldstudiesandlaboratoryresearch