BACKGROUND: Composite score validity depends on its reliability, content, and comparison with other outcomes measures. This study examined all three aspects of a composite score used in a third-year surgery clerkship. METHOD: Composite score reliability was calculated using stratified alpha; several other reasonable composite combinations were tested. Correlation coefficients between clerkship composite scores and grades were calculated with other achievement measures. Two consecutive years were studied (N = 162, N = 159). RESULTS: The clerkship composite score reliability was .76 (Year 1) and .81 (Year 2). Positive correlations (P <or= .05) were found between composite scores and other clerkships' test scores and the United States Medical Licensing Examination Step 2 Clinical Knowledge examination. Positive correlations (P <or= .05) were found between surgery clerkship grades and other clerkship grades. CONCLUSIONS: This study documents the reliability of a composite score and provides evidence for its validity in a surgery clerkship.
BACKGROUND: Composite score validity depends on its reliability, content, and comparison with other outcomes measures. This study examined all three aspects of a composite score used in a third-year surgery clerkship. METHOD: Composite score reliability was calculated using stratified alpha; several other reasonable composite combinations were tested. Correlation coefficients between clerkship composite scores and grades were calculated with other achievement measures. Two consecutive years were studied (N = 162, N = 159). RESULTS: The clerkship composite score reliability was .76 (Year 1) and .81 (Year 2). Positive correlations (P <or= .05) were found between composite scores and other clerkships' test scores and the United States Medical Licensing Examination Step 2 Clinical Knowledge examination. Positive correlations (P <or= .05) were found between surgery clerkship grades and other clerkship grades. CONCLUSIONS: This study documents the reliability of a composite score and provides evidence for its validity in a surgery clerkship.
Authors: Aaron W Bernard; Richard Feinn; Gabbriel Ceccolini; Robert Brown; Ilene Rosenberg; Walter Trymbulak; Christine VanCott Journal: J Med Educ Curric Dev Date: 2019-07-22
Authors: Abd Moain Abu Dabrh; Thomas A Waller; Robert P Bonacci; Anem J Nawaz; Joshua J Keith; Anjali Agarwal; John Merfeld; Terri Nordin; Mary Michelle Winscott; Thomas E Belda; Mohammad Hassan Murad; Sally Ann L Pantin; Lawrence W Steinkraus; Thomas J Grau; Kurt B Angstman Journal: BMC Med Educ Date: 2020-10-14 Impact factor: 2.463