| Study period | ||||
---|---|---|---|---|---|
Enrolment | Allocation | Post allocation | |||
Time point | Pre intervention | Time (t0) | Centre baseline (t1a) | Child baseline (t1b) | Post intervention (t2) |
Enrolment | |||||
 Eligibility screen | X |  |  |  |  |
 Initial centre contact | X |  |  |  |  |
 Centre informed consent | X |  |  |  |  |
 Allocation |  | X |  |  |  |
 Recruitment of children and parent informed consent |  | X |  |  |  |
Intervention | |||||
 PD intervention |  |  |  |  | X |
 Regular practice (control) |  |  |  |  | X |
Assessments | |||||
 Child assessments | |||||
  DAS Verbal Comprehension |  |  |  | X | X |
  EYT Expressive Vocabulary |  |  |  | X | X |
  DAS Early Number Concepts |  |  |  | X | X |
  Early Numeracy Scales |  |  |  | X | X |
  Strengths & Difficulties (SDQ) |  |  |  | X | X |
  Child Self-Regulation (CSBQ) |  |  |  | X | X |
 Centre-level assessments | |||||
  ECERS-E Environmental Rating |  |  | X |  | X |
  SSTEW Environmental Rating |  |  | X |  | X |