Promoting Replicability in Developmental Research Through Meta-analyses: Insights From Language Acquisition Research.
Child Dev
; 89(6): 1996-2009, 2018 11.
Article
em En
| MEDLINE
| ID: mdl-29736962
ABSTRACT
Previous work suggests that key factors for replicability, a necessary feature for theory building, include statistical power and appropriate research planning. These factors are examined by analyzing a collection of 12 standardized meta-analyses on language development between birth and 5 years. With a median effect size of Cohen's d = .45 and typical sample size of 18 participants, most research is underpowered (range = 6%-99%; median = 44%); and calculating power based on seminal publications is not a suitable strategy. Method choice can be improved, as shown in analyses on exclusion rates and effect size as a function of method. The article ends with a discussion on how to increase replicability in both language acquisition studies specifically and developmental research more generally.
Texto completo:
1
Eixos temáticos:
Pesquisa_clinica
Base de dados:
MEDLINE
Assunto principal:
Desenvolvimento da Linguagem
Tipo de estudo:
Systematic_reviews
Limite:
Child, preschool
/
Humans
/
Infant
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article