Validity and Reliability of a Questionnaire Developed to Assess the Knowledge of Pregnant Women about Cord Blood Banking
https://doi.org/10.47836/mjmhs.19.2.23
- Author:
S Ponnalagi Subramaniam
1
;
Hafizuddin Mohamed Fauzi
1
,
2
;
Ailin Mazuita Mazlan
3
;
Ernest Mangantig
4
Author Information
1. Department of Clinical Medicine, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, Sains@Bertam, Bertam 13200 Kepala Batas, Pulau Pinang, Malaysia&
2. Clinical Diagnostic Laboratory, Pusat Perubatan Universiti Sains Malaysia Bertam (PPUSMB), Universiti Sains Malaysia, Bertam 13200 Kepala Batas, Pulau Pinang, Malaysia
3. Cellular Therapy Division, National Blood Centre, Jalan Tun Razak, 50400 Kuala Lumpur Malaysia
4. Department of Community Medicine, Advanced Medical and Dental Institute (IPPT), Universiti Sains Malaysia, Sains@ Bertam, Bertam 13200 Kepala Batas, Pulau Pinang, Malaysia
- Publication Type:Journal Article
- Keywords:
Validity, Reliability, Questionnaire, Knowledge, Cord Blood Banking
- From:Malaysian Journal of Medicine and Health Sciences
2023;19(No.2):151-158
- CountryMalaysia
- Language:English
-
Abstract:
Introduction: Cord blood (CB) is rich in hematopoietic stem cells. There has been significant growth in cord blood
banks (CBBs) throughout the world. In Malaysia, the CB units cryopreserved in public CBB is below its optimal
level. Lack of knowledge about CB banking among mothers in other countries influenced their decision to donate
CB, however, there is no local data to support this in Malaysia. Moreover, no validated and reliable tool is available
for measuring local women’s knowledge about CB banking. In this study, a questionnaire to assess pregnant women’s knowledge about CB banking was developed and validated. Method: Several steps were taken to develop the
knowledge items in the questionnaire which includes comprehensive literature review, content validity by a panel
of experts, and face validity by a group of pregnant women. The questionnaire was developed in Malay language
and contained 18 items. After modifications, the self-administered questionnaire was distributed to 121 pregnant
women to assess its psychometric properties using two-parameter logistic item response theory analysis and internal consistency reliability analysis. Results: The majority of the knowledge items showed acceptable difficulty and
discriminatory values. The Cronbach’s alpha and ICC values were 0.831 and 0.887, respectively, indicating good
reliability. All 18 knowledge items were retained for the final version of the questionnaire. Conclusion: The newly
developed questionnaire demonstrated acceptable psychometric properties and can be used as a reliable tool to
assess knowledge about CB banking among pregnant women in the local population.
- Full text:11.2023my1473.pdf
