TY - JOUR
T1 - Effectiveness of valid mean substitution in treating missing data in attitude assessment
AU - Dodeen, Hamzeh M.
PY - 2003
Y1 - 2003
N2 - This study investigates the use of the valid mean substitution (VMS) procedure in replacing missing data in attitude assessment. Using four scales from an actual field data set, the effectiveness of VMS was compared with the multiple regression replacement procedure. The study was designed such that data were missing completely at random under two research conditions: percentage of missing items in each scale (10, 30 and 50%); percentage of missing values in each item (10, 30 and 50%). The results indicated that both procedures are similarly effective in estimating the means and standard deviations of the scales. However, VMS is superior in estimating parameters.
AB - This study investigates the use of the valid mean substitution (VMS) procedure in replacing missing data in attitude assessment. Using four scales from an actual field data set, the effectiveness of VMS was compared with the multiple regression replacement procedure. The study was designed such that data were missing completely at random under two research conditions: percentage of missing items in each scale (10, 30 and 50%); percentage of missing values in each item (10, 30 and 50%). The results indicated that both procedures are similarly effective in estimating the means and standard deviations of the scales. However, VMS is superior in estimating parameters.
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U2 - 10.1080/02602930301674
DO - 10.1080/02602930301674
M3 - Article
AN - SCOPUS:33646695196
SN - 0260-2938
VL - 28
SP - 505
EP - 513
JO - Assessment and Evaluation in Higher Education
JF - Assessment and Evaluation in Higher Education
IS - 5
ER -