ABSTRACT
We, the Editor-in-Chief and Publisher of Journal of Applied Statistics have retracted the following article, which was due to appear in a special issue: Muhammad Ijaz, Wali Khan Mashwani, Atilla Göktas & Yuksel Akay Unvan (2021): A novel alpha power transformed exponential distribution with real-life applications, Journal of Applied Statistics. DOI: 10.1080/02664763.2020.1870673. The Editor-in-Chief and the Publisher are cognisant of clear evidence that the findings presented are unreliable. The probability distribution is only valid if α > 1 and numerous mathematical properties in Section 2 have been shown to be incorrect. This has then impacted at least two figures in the article. We are further cognisant that the article contained a number of similarities to previously published papers where some of the findings had been published without proper cross-referencing including: Gupta, R.D. and Kundu, D. (2001), Exponentiated Exponential Family: An Alternative to Gamma and Weibull Distributions. Biom. J., 43: 117-130. https://doi.org/10.1002/1521-4036(200102)43:1<117::AID-BIMJ117>3.0.CO;2-R. We have been informed in our decision-making by our corrections and editorial policies and the Committee on Publication Ethics (COPE) guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as 'Retracted'. The Editor-in-Chief and the Publisher would like to thank the anonymous reader/s for their comments which alerted JAS to these major errors in the first instance.
ABSTRACT
AIM: The aim of the current study was to translate the Hung Postpartum Stress Scale into Turkish and test the reliability and validity of the Turkish version of the scale. METHODS: The translation process of the Hung Postpartum Stress Scale into Turkish and the testing of reliability and validity of the newly developed scale on postpartum stress in women are described. The questionnaire was translated using a back-translation technique. Expert review of internal consistency reliability, content validity, factor analysis of construct validity and criterion-related validity were examined. RESULTS: Cronbach's alpha for the Turkish version of the Hung Postpartum Stress Scale was 0.931, indicating very good reliability. Factor analyses resulted in a two factor scale structure: maternal concerns and acceptability of the newborn by the family. Analyses also indicated good test-re-test reliability for the Turkish version of the Hung Postpartum Stress Scale (P < 0.01). CONCLUSIONS: The present study describes the design of a Turkish version of the Hung Postpartum Stress Scale. The newly developed scale proved to be reliable and valid and will be a valuable instrument for women's healthcare professionals.
