Systematic reviews should be reported completely and accurately so that users can interpret
and appraise the review findings appropriately. In this commentary, we describe key …

Background: During the 20th century the alpha coefficient (α) was widely used in the
estimation of the internal consistency reliability of test scores. After misuses were identified …

Loneliness affects well-being and has long-term negative impacts on physical and mental
health, educational outcomes, and employability. Because of those current and long-term …

The aim of the current study was to conduct a reliability generalisation (RG) meta‐analysis of
Cronbachʼs alpha for the Insomnia Severity Index (ISI). A systematic search of three …

Abstract Objective/Background: The Epworth Sleepiness Scale (ESS) is one of the most
used self-reported instruments to assess sleepiness. Thus, several adaptations into different …

The widespread administration and multiple validations of the Fear of COVID-19 Scale (FCV-
19S) in different languages have highlighted the controversy over its underlying structure …

Abstract The Athens Insomnia Scale (AIS) is a widely used self-report measure to evaluate
insomnia symptoms based on the International Classification of Diseases criteria version 10 …

Meta-analysis is a powerful and important tool to synthesize the literature about a research
topic. Like other kinds of research, meta-analyses must be reproducible to be compliant with …

Antecedentes: en los últimos años, las meta-revisiones, o revisiones paraguas, han
incrementado exponencialmente su uso. Una meta-revisión proporciona un resumen de las …

Abstract Background The Childhood Trauma Questionnaire-Short Form (CTQ-SF) is among
the most extensively studied and widely utilized instruments for evaluating childhood …