Results 31 to 40 of about 333,099 (299)

Embedded formative assessment and classroom process quality. How do they interact in promoting students\u27 science understanding [PDF]

open access: yes, 2015
In this study we examine the interplay between curriculum-embedded formative assessment-a well-known teaching practice-and general features of classroom process quality (i.e., cognitive activation, supportive climate, classroom management) and their ...
Büttner, Gerhard   +9 more
core   +1 more source

Cluster Randomized Trials

open access: yes, 2019
Author(s): Crespi-Chun, Catherine; Crespi, Catherine | Editor(s): Halabi, Susan; Michiels, Stefan | Abstract: This chapter discusses randomization, analysis, sample size and power for cluster randomized trials. Both continuous and binary outcomes are covered. R code to implement the methods is provided.
Crespi-Chun, Catherine   +1 more
openaire   +3 more sources

The Effectiveness of Alcohol Screening and Brief Intervention in Emergency Departments: A Multicentre Pragmatic Cluster Randomized Controlled Trial [PDF]

open access: yes, 2014
BACKGROUND: Alcohol misuse is common in people attending emergency departments (EDs) and there is some evidence of efficacy of alcohol screening and brief interventions (SBI).
A Moyer   +50 more
core   +15 more sources

Does education level affect the efficacy of a community based salt reduction program? - A post-hoc analysis of the China Rural Health Initiative Sodium Reduction Study (CRHI-SRS)

open access: yesBMC Public Health, 2016
Background Whether educational level influences the effects of health education is not clearly defined. This study examined whether the impact of a community-based dietary salt reduction program was affected by the level of education of participants ...
Xin Wang   +6 more
doaj   +1 more source

Cluster identification, selection, and description in cluster randomized crossover trials: the PREP-IT trials

open access: yesTrials, 2020
Background In cluster randomized crossover (CRXO) trials, groups of participants (i.e., clusters) are randomly allocated to receive a sequence of interventions over time (i.e., cluster periods).
Sheila Sprague   +17 more
doaj   +1 more source

More Powerful Cluster Randomized Control Trials

open access: yesEconomic Development and Cultural Change, 2022
Balanced experimental designs, in which the number of treatment and control units are the same, do not maximize power subject to a cost constraint when treat-ment units are more expensive than control ones. Despite this, such balanced designs are the norm in economics. This paper describes methods to optimally choose the number of treatment and control
Marcos Vera-Hernandez, Brendon McConnell
openaire   +3 more sources

Eliminating Monitor Overuse (EMO) type III effectiveness-deimplementation cluster-randomized trial: Statistical analysis plan

open access: yesContemporary Clinical Trials Communications, 2023
Background: Deimplementing overused health interventions is essential to maximizing quality and value while minimizing harm, waste, and inefficiencies. Three national guidelines discourage continuous pulse oximetry (SpO2) monitoring in children who are ...
Rui Xiao   +11 more
doaj   +1 more source

Alcohol Screening and Brief Interventions for Offenders in the Probation Setting (SIPS Trial): a Pragmatic Multicentre Cluster Randomized Controlled Trial [PDF]

open access: yes, 2014
Aim - To evaluate the effectiveness of different brief intervention strategies at reducing hazardous or harmful drinking in the probation setting. Offender managers were randomized to three interventions, each of which built on the previous one: feedback
Bland, Martin   +18 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Cluster-randomized, crossover trial of head positioning in acute stroke [PDF]

open access: yes, 2013
The role of supine positioning after acute stroke in improving cerebral blood flow and the countervailing risk of aspiration pneumonia have led to variation in head positioning in clinical practice.
Anderson, Craig   +24 more
core   +5 more sources

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