The purpose of this study was to explore factors related to PCC, and investigate the association between PCC and maternal health care through an appropriate research design, a high-quality questionnaire, and fieldwork in Nanhai and Pinghu.
Previous research indicates that recall bias can be minimized with the use of high quality questionnaires administered to participants and proxies who are unaware of the study hypothesis [ 54].
Moreover, this study of this highly educated population provided high quality questionnaire data.
Rasch analysis is a powerful statistical technique for developing high-quality and valid questionnaires.
We believe our prevalence estimates are credible due to the high quality of questionnaires used to measure psychological morbidity and the representativeness of our level three samples.
High-quality skyscrapers".
Serious, high-quality projects.
We want high-level, high-quality cases".
Abrams did high-quality reproductions.
This was high-quality tennis.
