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Table 1 Study schedule of enrollment, interventions, and assessments

From: A cluster randomized controlled trial of an after-school playground curriculum intervention to improve children’s physical, social, and emotional health: study protocol for the PLAYground project

 

STUDY PERIOD

Enrollment

Allocation

Post allocation

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TIMEPOINT

Pre-Trial

0

Fall 2022

Spring 2023

Summer 2023

Fall 2023

Spring 2024

Summer 2024

ENROLLMENT:

Eligibility screen

A & B

       

Informed consent

A & B

       

Allocation

 

A & B

      

INTERVENTIONS:

Healthy School Staff training

  

A

  

B

  

Student Peer Leader training

   

A

  

B

 

PRIMARY ASSESSMENTS:

Device-based physical activity

 

A & B

A & B

A & B

 

A & B

A & B

 

Social and emotional health

  Healthy School Staff Observations

 

A & B

A & B

A & B

 

A & B

A & B

 

  Student surveys

 

A & B

A & B

A & B

 

A & B

A & B

 

  Student interviews

   

A

  

B

 

Attendance and behavioral incidents

 

A & B

A & B

A & B

 

A & B

A & B

 

SECONDARY ASSESSMENTS:

Appropriateness and feasibility

   

A

  

B

 

Fidelity

  

A

A

 

B

B

 

Sustainability

     

A

A

 

DATA CLEANING, ANALYSIS, DISSEMINATION

    

A & B

  

A & B

  1. A = first intervention school group
  2. B = first control school group (year one) AND second intervention school group (year two)