Multiplicative treatment effects in randomized pretest-posttest experimental designs.
Sign Up to like & getrecommendations! Published in 2019 at "Psychological methods"
DOI: 10.1037/met0000222
Abstract: In randomized pretest-posttest experimental designs, experimental treatments are commonly compared through an additive difference. The assumed additive effects of experimental treatments, in randomized pretest-posttest design, also correspond to additive differences between pre- and posttreatment measures.… read more here.
Keywords: posttest experimental; randomized pretest; experimental designs; pretest posttest ... See more keywords
Model specification for nonlinearity and heterogeneity of regression in randomized pretest posttest studies: Practical solutions for missing data.
Sign Up to like & getrecommendations! Published in 2020 at "Psychological methods"
DOI: 10.1037/met0000364
Abstract: The randomized pretest posttest design is common in psychology, as is the corresponding missing data concern. Although missing data handling has seen advances over the past several decades, effective and practical solutions for handling missing… read more here.
Keywords: randomized pretest; practical solutions; posttest studies; model ... See more keywords