|
Field
Study Withdrawn
|
Before
|
After
No
|
|
Field
Intervention Completion Date
|
Before
|
After
March 08, 2020
|
|
Field
Data Collection Complete
|
Before
|
After
Yes
|
|
Field
Final Sample Size: Number of Clusters (Unit of Randomization)
|
Before
|
After
Unit of randomisation was at the employer level. We randomised a total of 1128 unique employers. However, the trial had to stop in March 2020 due to COVID-19 lockdowns. Therefore we were only able to use 4 out of 6 batches of samples and the final sample included 821 employers.
|
|
Field
Was attrition correlated with treatment status?
|
Before
|
After
No
|
|
Field
Final Sample Size: Total Number of Observations
|
Before
|
After
1788 apprentices and 821 employers. We planned 6 rolling monthly enrolment but the trial had to stop in March 2020 due to COVID-19 lockdowns. So only batch 1-4 were used for analyses.
|
|
Field
Final Sample Size (or Number of Clusters) by Treatment Arms
|
Before
|
After
6000 employer and apprentice messages were delivered as intervention. There were 896 apprentices in the control group and 892 apprentices in the treatment group (only using batches 1-4). There were 410 emploers in the control group and 411 employers in the treatment group (also only using batches 1-4). Trial had to stop due to COVID-19 lockdowns
|
|
Field
Is there a restricted access data set available on request?
|
Before
|
After
No
|
|
Field
Program Files
|
Before
|
After
No
|
|
Field
Data Collection Completion Date
|
Before
|
After
April 29, 2020
|
|
Field
Is data available for public use?
|
Before
|
After
No
|