Mind-Wandering 2

Last registered on June 15, 2022

Pre-Trial

Trial Information

General Information

Title
Mind-Wandering 2
RCT ID
AEARCTR-0009550
Initial registration date
June 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
June 15, 2022, 10:06 AM EDT

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

Locations

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Primary Investigator

Affiliation
Boston College

Other Primary Investigator(s)

PI Affiliation
Ohio State
PI Affiliation

Additional Trial Information

Status
In development
Start date
2022-06-07
End date
2022-09-01
Secondary IDs
Prior work
This trial is based on or builds upon one or more prior RCTs.
Abstract
This project investigates fundamental economic questions about mind-wandering.
Note this is connected to AEARCTR-0008811. Those data, as outlined in that registration, will be used in this study.
External Link(s)

Registration Citation

Citation
Coffman, Lucas, Hannu Kivimaki and Ian Krajbich. 2022. "Mind-Wandering 2." AEA RCT Registry. June 15. https://doi.org/10.1257/rct.9550
Experimental Details

Interventions

Intervention(s)
We vary (but do not include every possible cell; details below)
The costs of unintentional mind-wandering
Whether there is a working-memory burdensome task
Whether there is a reminder of the penalties after the working-memory task
Whether the working-memory task is at the beginning or 2/3 of the way through the study
Whether the task is fun
Intervention Start Date
2022-06-07
Intervention End Date
2022-09-01

Primary Outcomes

Primary Outcomes (end points)
Our main measure of mind-wandering is the total number of mistakes made in the “main task” portion of the study. Mistakes are the sum of incorrect answers and answers not provided in the allotted time.
We will look at how this varies with respect to the intervention, how it varies over time, whether incorrect answers or late answers are more prevalent, how common mistakes are versus the use of a pause button, as well as correlates with survey measures.
Primary Outcomes (explanation)

Secondary Outcomes

Secondary Outcomes (end points)
Secondary Outcomes (explanation)

Experimental Design

Experimental Design
The experiment measures whether a subject is on task using a sustained attention to response task: Words flash on the screen one-at-a-time, and every so often, the sequence stops. At this point, the participant is required to recall what the most recent word that was shown, choosing from four options. Every time they provide an incorrect answer or the answer is too late, they have to do additional tasks to earn their payment.

Note this is being done online, through Prolific.
Experimental Design Details
Not available
Randomization Method
Randomization is done within the Qualtrics survey, according to prescribed ratios.
Randomization Unit
Randomization is done at the individual level.
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
NA
Sample size: planned number of observations
See below
Sample size (or number of clusters) by treatment arms
We will collect batches of 50 observations per treatment arm starting 6/7/2022. We will stop each treatment once the standard error of its estimated treatment effect is below 0.16. See Analysis plan for details.
The treatment effects considered are:
1 vs 2
3 vs 1
4 vs 5
6 vs 7
8 vs 1
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Boston College Institutional Review Board
IRB Approval Date
2021-10-28
IRB Approval Number
22.114.01e
Analysis Plan

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