User profiles for Amery Wu
 | Amery WuAssociate Professor, University of British Columbia Verified email at ubc.ca Cited by 3076 |
Understanding and using mediators and moderators
Mediation and moderation are two theories for refining and understanding a causal relationship.
Empirical investigation of mediators and moderators requires an integrated research …
Empirical investigation of mediators and moderators requires an integrated research …
Item response tree models to investigate acquiescence and extreme response styles in Likert-type rating scales
M Park, AD Wu - Educational and Psychological …, 2019 - journals.sagepub.com
Item response tree (IRTree) models are recently introduced as an approach to modeling
response data from Likert-type rating scales. IRTree models are particularly useful to capture a …
response data from Likert-type rating scales. IRTree models are particularly useful to capture a …
What type of social support influences self-reported physical and mental health among older women?
Objective: We examined which types of social support were associated with older women’s
self-report of physical and mental health and whether the effects of social support were …
self-report of physical and mental health and whether the effects of social support were …
Relative importance of predictors in multilevel modeling
The Pratt index is a useful and practical strategy for day-to-day researchers when ordering
predictors in a multiple regression analysis. The purposes of this study are to introduce and …
predictors in a multiple regression analysis. The purposes of this study are to introduce and …
A methodology for Zumbo's third generation DIF analyses and the ecology of item responding
Methods for detecting differential item functioning (DIF) and item bias are typically used in the
process of item analysis when developing new measures; adapting existing measures for …
process of item analysis when developing new measures; adapting existing measures for …
Decoding the meaning of factorial invariance and updating the practice of multi-group confirmatory factor analysis: A demonstration with TIMSS data
Measurement invariance (MI) has been developed in a very technical language and manner
that is generally not widely accessible to social and behavioral researchers and applied …
that is generally not widely accessible to social and behavioral researchers and applied …
The impact of outliers on Cronbach's coefficient alpha estimate of reliability: Ordinal/rating scale item responses
In a recent Monte Carlo simulation study, Liu and Zumbo showed that outliers can severely
inflate the estimates of Cronbach’s coefficient alpha for continuous item response data—…
inflate the estimates of Cronbach’s coefficient alpha for continuous item response data—…
Developing and evaluating a relevant and feasible instrument for measuring health literacy of Canadian high school students
Health literacy has come to play a critical role in health education and promotion, yet it is
poorly understood in adolescents and few measurement tools exist. Standardized instruments …
poorly understood in adolescents and few measurement tools exist. Standardized instruments …
Physician trust in the patient: development and validation of a new measure
PURPOSE Mutual trust is an important aspect of the patient-physician relationship with
positive consequences for both parties. Previous measures have been limited to patient trust in …
positive consequences for both parties. Previous measures have been limited to patient trust in …
[HTML][HTML] Revisiting patient satisfaction following total knee arthroplasty: a longitudinal observational study
…, E Randall, N Suryaprakash, AD Wu… - BMC Musculoskeletal …, 2018 - Springer
Background Total knee arthroplasty (TKA) is the most common joint replacement surgery in
Canada. Earlier Canadian work reported 1 in 5 TKA patients expressing dissatisfaction …
Canada. Earlier Canadian work reported 1 in 5 TKA patients expressing dissatisfaction …