Psychometric testing of the Impact of Event Scale-Chinese Version (IES-C) in oral cancer patients in Taiwan

Shu Ching Chen, Yeur Hur Lai, Chun Ta Liao, Chia-Chin Lin

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Goals of work: No culturally relevant instrument exists to assess the impact of cancer on patients in Taiwan. Therefore, this two-phase study was undertaken to (1) develop a Chinese version of the Impact of Event Scale (IES), (2) examine its psychometric properties, and (3) use the IES-Chinese version (IES-C) to assess the impact of cancer in newly diagnosed oral cancer patients in Taiwan. Patients and methods: The psychometric properties of the 15-item IES-C were tested in 106 newly diagnosed oral cancer patients and analyzed by descriptive statistics, test-retest reliability, Pearson's correlation, and principal component analysis. Main results: The results showed that (1) the IES-C has satisfactory content validity and feasibility; (2) overall internal consistency (Cronbach's alpha) was 0.91 with values of 0.91 and 0.81 for intrusion and avoidance, respectively; (3) overall test-retest reliability (3-day interval) was 0.97; (4) two clearly identified factors explained 55.97% of the variance; (5) satisfactory construct validity was supported by both factor analysis and theoretically supported correlation analysis (significant correlations between the total IES-C and its subscales as well as anxiety and depression); and (6) oral cancer patients had relatively higher IES-C scores than previously reported. Conclusions: These results support the IES-C as an instrument with satisfactory psychometric properties and ease of use in clinical settings. They also suggest that more attention should be paid to the impact on patients of a new diagnosis of oral cancer. Further testing of the IES-C in different cancer populations is suggested to validate its psychometric properties.

Original languageEnglish
Pages (from-to)485-492
Number of pages8
JournalSupportive Care in Cancer
Volume13
Issue number7
DOIs
Publication statusPublished - Jul 2005

Fingerprint

Mouth Neoplasms
Taiwan
Psychometrics
Reproducibility of Results
Neoplasms
Principal Component Analysis
Statistical Factor Analysis
Anxiety
Depression
Population

Keywords

  • Avoidance
  • Impact of Event Scale
  • Intrusion
  • Oral cancer
  • Psychometrics
  • Reliability
  • Validity

ASJC Scopus subject areas

  • Oncology
  • Nursing(all)

Cite this

Psychometric testing of the Impact of Event Scale-Chinese Version (IES-C) in oral cancer patients in Taiwan. / Chen, Shu Ching; Lai, Yeur Hur; Liao, Chun Ta; Lin, Chia-Chin.

In: Supportive Care in Cancer, Vol. 13, No. 7, 07.2005, p. 485-492.

Research output: Contribution to journalArticle

@article{6e64785201344587925e42cf638104d7,
title = "Psychometric testing of the Impact of Event Scale-Chinese Version (IES-C) in oral cancer patients in Taiwan",
abstract = "Goals of work: No culturally relevant instrument exists to assess the impact of cancer on patients in Taiwan. Therefore, this two-phase study was undertaken to (1) develop a Chinese version of the Impact of Event Scale (IES), (2) examine its psychometric properties, and (3) use the IES-Chinese version (IES-C) to assess the impact of cancer in newly diagnosed oral cancer patients in Taiwan. Patients and methods: The psychometric properties of the 15-item IES-C were tested in 106 newly diagnosed oral cancer patients and analyzed by descriptive statistics, test-retest reliability, Pearson's correlation, and principal component analysis. Main results: The results showed that (1) the IES-C has satisfactory content validity and feasibility; (2) overall internal consistency (Cronbach's alpha) was 0.91 with values of 0.91 and 0.81 for intrusion and avoidance, respectively; (3) overall test-retest reliability (3-day interval) was 0.97; (4) two clearly identified factors explained 55.97{\%} of the variance; (5) satisfactory construct validity was supported by both factor analysis and theoretically supported correlation analysis (significant correlations between the total IES-C and its subscales as well as anxiety and depression); and (6) oral cancer patients had relatively higher IES-C scores than previously reported. Conclusions: These results support the IES-C as an instrument with satisfactory psychometric properties and ease of use in clinical settings. They also suggest that more attention should be paid to the impact on patients of a new diagnosis of oral cancer. Further testing of the IES-C in different cancer populations is suggested to validate its psychometric properties.",
keywords = "Avoidance, Impact of Event Scale, Intrusion, Oral cancer, Psychometrics, Reliability, Validity",
author = "Chen, {Shu Ching} and Lai, {Yeur Hur} and Liao, {Chun Ta} and Chia-Chin Lin",
year = "2005",
month = "7",
doi = "10.1007/s00520-005-0775-x",
language = "English",
volume = "13",
pages = "485--492",
journal = "Supportive Care in Cancer",
issn = "0941-4355",
publisher = "Springer Verlag",
number = "7",

}

TY - JOUR

T1 - Psychometric testing of the Impact of Event Scale-Chinese Version (IES-C) in oral cancer patients in Taiwan

AU - Chen, Shu Ching

AU - Lai, Yeur Hur

AU - Liao, Chun Ta

AU - Lin, Chia-Chin

PY - 2005/7

Y1 - 2005/7

N2 - Goals of work: No culturally relevant instrument exists to assess the impact of cancer on patients in Taiwan. Therefore, this two-phase study was undertaken to (1) develop a Chinese version of the Impact of Event Scale (IES), (2) examine its psychometric properties, and (3) use the IES-Chinese version (IES-C) to assess the impact of cancer in newly diagnosed oral cancer patients in Taiwan. Patients and methods: The psychometric properties of the 15-item IES-C were tested in 106 newly diagnosed oral cancer patients and analyzed by descriptive statistics, test-retest reliability, Pearson's correlation, and principal component analysis. Main results: The results showed that (1) the IES-C has satisfactory content validity and feasibility; (2) overall internal consistency (Cronbach's alpha) was 0.91 with values of 0.91 and 0.81 for intrusion and avoidance, respectively; (3) overall test-retest reliability (3-day interval) was 0.97; (4) two clearly identified factors explained 55.97% of the variance; (5) satisfactory construct validity was supported by both factor analysis and theoretically supported correlation analysis (significant correlations between the total IES-C and its subscales as well as anxiety and depression); and (6) oral cancer patients had relatively higher IES-C scores than previously reported. Conclusions: These results support the IES-C as an instrument with satisfactory psychometric properties and ease of use in clinical settings. They also suggest that more attention should be paid to the impact on patients of a new diagnosis of oral cancer. Further testing of the IES-C in different cancer populations is suggested to validate its psychometric properties.

AB - Goals of work: No culturally relevant instrument exists to assess the impact of cancer on patients in Taiwan. Therefore, this two-phase study was undertaken to (1) develop a Chinese version of the Impact of Event Scale (IES), (2) examine its psychometric properties, and (3) use the IES-Chinese version (IES-C) to assess the impact of cancer in newly diagnosed oral cancer patients in Taiwan. Patients and methods: The psychometric properties of the 15-item IES-C were tested in 106 newly diagnosed oral cancer patients and analyzed by descriptive statistics, test-retest reliability, Pearson's correlation, and principal component analysis. Main results: The results showed that (1) the IES-C has satisfactory content validity and feasibility; (2) overall internal consistency (Cronbach's alpha) was 0.91 with values of 0.91 and 0.81 for intrusion and avoidance, respectively; (3) overall test-retest reliability (3-day interval) was 0.97; (4) two clearly identified factors explained 55.97% of the variance; (5) satisfactory construct validity was supported by both factor analysis and theoretically supported correlation analysis (significant correlations between the total IES-C and its subscales as well as anxiety and depression); and (6) oral cancer patients had relatively higher IES-C scores than previously reported. Conclusions: These results support the IES-C as an instrument with satisfactory psychometric properties and ease of use in clinical settings. They also suggest that more attention should be paid to the impact on patients of a new diagnosis of oral cancer. Further testing of the IES-C in different cancer populations is suggested to validate its psychometric properties.

KW - Avoidance

KW - Impact of Event Scale

KW - Intrusion

KW - Oral cancer

KW - Psychometrics

KW - Reliability

KW - Validity

UR - http://www.scopus.com/inward/record.url?scp=21644455005&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=21644455005&partnerID=8YFLogxK

U2 - 10.1007/s00520-005-0775-x

DO - 10.1007/s00520-005-0775-x

M3 - Article

VL - 13

SP - 485

EP - 492

JO - Supportive Care in Cancer

JF - Supportive Care in Cancer

SN - 0941-4355

IS - 7

ER -