title: Measuring exercise self-efficacy in pregnant women: psychometric properties of the pregnancy-exercise self-efficacy scale (P-ESES).
abstract: OBJECTIVE
  This study assessed the psychometric properties of a modified self-efficacy scale-the Pregnancy-Exercise Self-Efficacy Scale (P-ESES).
  
  
  METHODS
  Pregnant women completed the P-ESES and physical activity questionnaires (N = 88).
  
  
  RESULTS
  Internal consistency was confirmed by Cronbach's alpha (alpha = 0.838) and equal-length Spearman-Brown (alpha = 8.22). Squared multiple correlation coefficients were calculated showing 9 of 10 items with values greater than the desired .5. A nonrotated exploratory principal components analysis confirmed the same 9 of 10 items loaded on a single factor, accounting for 46.1% of the variance. Each item had an acceptable load value of .40 or higher.
  
  
  CONCLUSIONS
  Initial testing of the P-ESES confirmed validity and reliability with the exception of 1 item from the original measure: "Exercising without physician approval".
authors.forename: Helen W
authors.initials: HW
authors.lastname: Bland
authors.forename: Bridget F
authors.initials: BF
authors.lastname: Melton
authors.forename: Elaine S
authors.initials: ES
authors.lastname: Marshall
authors.forename: Jacquelyn A
authors.initials: JA
authors.lastname: Nagle
mesh_terms: D000293:Adolescent; D000328:Adult; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000523:psychology*; D037841:Pregnant People / Q000523:psychology*; D011594:Psychometrics / Q000295:instrumentation*; D015203:Reproducibility of Results; D012424:Rural Population; D020377:Self Efficacy; D012959:Socioeconomic Factors; D015144:Southeastern United States; D011795:Surveys and Questionnaires; D055815:Young Adult