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Pumping on Campus: Validity and Reliability of a Theory‐Based Instrument to Assess Breastfeeding Behavior
Author(s) -
Dinour Lauren M,
Bai Yeon K
Publication year - 2017
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.31.1_supplement.650.12
Subject(s) - theory of planned behavior , cronbach's alpha , psychology , construct validity , psychosocial , scale (ratio) , reliability (semiconductor) , validity , applied psychology , social psychology , psychometrics , clinical psychology , control (management) , psychiatry , power (physics) , physics , management , quantum mechanics , economics
The purpose of this study is to develop and confirm the psychometric properties of a Theory of Planned Behavior (TPB)‐based instrument, Pumping on Campus Questionnaire , to determine its validity and reliability. In January 2015, all employees and students of one university campus in New Jersey were invited to complete a 20‐minute online questionnaire measuring breast milk pumping behaviors, psychosocial factors—framed by the TPB—associated with pumping breast milk on campus, and demographic variables. Construct validity was determined via factor analyses of direct theory‐based measures (attitudes, subjective norm, perceived behavioral control, and intention), and reliability was tested using Cronbach's alpha (α). Two hundred eighteen women completed the questionnaire. The average age of respondents was 33 years (SD=7.5 years), and the majority of respondents were White (53.6%) and married (63.2%). Nearly three‐quarters of the women were students (71.6%), while the rest were employees (14.2% faculty, 14.2% staff). Validity of the Pumping on Campus Questionnaire was confirmed as psychometric properties corresponded to the factors extracted from the scale. Four factors from the direct construct subscales were responsible for 79.49% of total the variability. The instrument also illustrated strong and significant reliabilities at the full scale (α=.78) and theory construct subscales (range from α=.65 to α=.95). Based on these findings, the Pumping on Campus Questionnaire can serve as model TPB‐based instrument to examine factors associated with women's breast milk pumping behaviors. Theory‐based assessments of women's needs can guide breastfeeding promotion efforts and lead to successful outcomes (e.g., exclusive breastfeeding for six months) for all working and student mothers. As such, this instrument can be useful in the design of effective promotion programs to foster breastfeeding and breast milk pumping behaviors in university settings and elsewhere. Support or Funding Information N/A