Online Education: How Interactive Teacher Intervention Impacts Student Development

Last registered on July 27, 2023


Trial Information

General Information

Online Education: How Interactive Teacher Intervention Impacts Student Development
Initial registration date
November 06, 2022

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
November 08, 2022, 3:44 PM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
July 27, 2023, 10:05 AM EDT

Last updated is the most recent time when changes to the trial's registration were published.



Primary Investigator

School of Economics and Jinan University—University of Birmingham Joint Institute, Jinan University

Other Primary Investigator(s)

PI Affiliation
Jinan University
PI Affiliation
Jinan University
PI Affiliation
Guangdong University of Finance
PI Affiliation
Jinan University

Additional Trial Information

Start date
End date
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Using a field experiment, we conduct the first investigation of how interactive teacher intervention in online education impacts the academic achievements and noncognitive abilities of primary school students. Our findings indicate that adding 30-minute interactive online recitation sessions to pure online courses leads to significant improvements in students’ exam scores, as well as increased levels of extraversion, openness, and conscientiousness. The effects can be attributed to three underlying mechanisms. First, students who participate in the session develop better in-class attention.Second, they devote more time to reviewing lessons after class. Third, they exhibit a higher degree of social interaction.
External Link(s)

Registration Citation

Wang, Chunchao et al. 2023. "Online Education: How Interactive Teacher Intervention Impacts Student Development." AEA RCT Registry. July 27.
Experimental Details


we conduct an 8-week randomized experiment for students in L county in China during the school closure period due to the outbreak of COVID-19 pandemic, where some randomly chosen students are provided an opportunity to join a 30-minute interactive online recitation session.
Intervention Start Date
Intervention End Date

Primary Outcomes

Primary Outcomes (end points)
K-12 students’ academic achievements and non-cognitive abilities.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
We randomly selected one class from each of the three grades in 5 schools to compose our treatment group. In total, we have 718 students from 15 classes, which account for one quarter of the whole sample. The remaining 2,319 students formed the control group. As for the treatment group, we sent the corresponding teachers a request about teaching a recitation session to the students through online Tencent Meeting. Every Friday after the regular learning time, the teachers and students would attend a 30-minute online recitation class, which was set up by our experimental team members.
Experimental Design Details
Randomization Method
We randomly choose 15 classes and provide students in those classes access to a 30-minute interactive online recitation session.
Randomization Unit
Was the treatment clustered?

Experiment Characteristics

Sample size: planned number of clusters
5 schools
Sample size: planned number of observations
3037 students
Sample size (or number of clusters) by treatment arms
718 students are treatment group 2319 students are control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)

Institutional Review Boards (IRBs)

IRB Name
Department of Economics, Jinan University
IRB Approval Date
IRB Approval Number
IRB Name
Study has received IRB approval. Details not available.
IRB Approval Date
Details not available
IRB Approval Number
Details not available


Post Trial Information

Study Withdrawal

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Is the intervention completed?
Intervention Completion Date
April 30, 2020, 12:00 +00:00
Data Collection Complete
Data Collection Completion Date
July 10, 2020, 12:00 +00:00
Final Sample Size: Number of Clusters (Unit of Randomization)
5 schools.
Was attrition correlated with treatment status?
Final Sample Size: Total Number of Observations
3037 students.
Final Sample Size (or Number of Clusters) by Treatment Arms
718 students are treatment group 2319 students are control group.
Data Publication

Data Publication

Is public data available?

Program Files

Program Files
Reports, Papers & Other Materials

Relevant Paper(s)

Reports & Other Materials