Two-Method Planned Missing Designs for Longitudinal Research [PDF]
, 2014 We examine longitudinal extensions of the two-method measurement design, which uses planned missingness to optimize cost-efficiency and validity of hard-to-measure constructs.
Garnier-Villarreal, Mauricio +2 more
core +2 more sources
The Canadian Journal of Chemical Engineering, EarlyView.Abstract The waste activated sludge high‐rate (WASHR) process, developed in our previous study, is used for septic wastewater treatment. This high‐rate contact stabilization pre‐treatment uses typical waste streams found in wastewater treatment plants to reduce a portion of the loadings on the main treatment trains.
Arman Shirali +2 more
wiley +1 more source
PsichologijaCulture is an important contextual factor affecting human attitudes and behavior. Reliable and valid instruments are needed to measure this complex phenomenon.
Tadas Vadvilavičius +1 more
doaj +1 more source
The Consequences of Perfectionism Scale: Factorial structure and relationships with perfectionism, performance perfectionism, affect, and depressive symptoms [PDF]
, 2013 This study investigated the Consequences of Perfectionism Scale (COPS) and its relationships with perfectionism, performance perfectionism, affect, and depressive symptoms in 202 university students using confirmatory factor analysis, correlations, and ...
Hoyle, Alison J. +2 more
core +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Methyl transesterification of soybean oil using heterogeneous catalysts for biodiesel production. Abstract The growing global demand for renewable fuels has driven the search for efficient catalysts in biodiesel production. This study presents the synthesis and characterization of x_MoO3/Z‐22 and x_MoO3/MMP heterogeneous catalysts, and evaluates the ...
André Miranda da Silva +4 more
wiley +1 more source
Propiedades psicométricas de la Escala Autoaplicada de Zung para Ansiedad
MaskanaLa Escala de Ansiedad de Zung, originalmente conocida como Self-Rating Depression Scale (SDS) y desarrollada por Zung en 1965, fue diseñada en 1971. En el siguiente estudio, se evaluaron las propiedades psicométricas de la Escala Autoaplicada de Zung ...
Lorena Delgado +3 more
doaj +1 more source
Factorial validity and group invariance of the Portuguese short version of the Social Physique Anxiety Scale in adolescents [PDF]
, 2009 Social physique anxiety (SPA) has been associated with a range of psychosocial and health-related variables, thus it can be considered is an indicator of social-psychological adjustment.
Calmeiro, Luis +2 more
core
Badminton players’ moral intentions : a factorial survey study into personal and contextual determinants [PDF]
, 2019 Improving and maintaining high ethical standards among athletes is a major challenge in sports, which requires sufficient knowledge on athletes’ moral intentions.
Constandt, Bram +3 more
core +1 more source
The reliability, validity and factorial structure of the Swahili version of the 7-item generalized anxiety disorder scale (GAD-7) among adults living with HIV from Kilifi, Kenya [PDF]
, 2020 Moses K. Nyongesa +5 more
openalex +1 more source
Optimal model‐based design of experiments for parameter precision: Supercritical extraction case
The Canadian Journal of Chemical Engineering, EarlyView.Abstract This study investigates the process of chamomile oil extraction from flowers. A parameter‐distributed model consisting of a set of partial differential equations is used to describe the governing mass transfer phenomena in a cylindrical packed bed with solid chamomile particles under supercritical conditions using carbon dioxide as a solvent ...
Oliwer Sliczniuk, Pekka Oinas
wiley +1 more source