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Field
Trial Start Date
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Before
June 20, 2022
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After
August 20, 2022
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Field
Last Published
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Before
June 26, 2022 05:21 AM
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After
August 22, 2022 04:47 PM
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Field
Intervention Start Date
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Before
June 20, 2022
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After
August 20, 2022
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Field
Intervention End Date
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Before
August 22, 2022
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After
October 20, 2022
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Field
Planned Number of Clusters
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Before
We will recruit 1192 individuals.
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After
We will recruit 1000 individuals.
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Field
Planned Number of Observations
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Before
We will recruit 1192 individuals. Each participant will be asked to complete 14 rounds of choices, which gives us 16,688 observations.
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After
We will recruit 1000 individuals. Each participant will be asked to complete 11 rounds of choices (this excludes 3 rounds that will be used for data checks), which gives us 11,000 observations.
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Field
Sample size (or number of clusters) by treatment arms
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Before
Half of 1192 individuals will be treated into information provision regarding body cameras.
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After
Half of 1000 individuals will be treated into information provision regarding body cameras.
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Field
Intervention (Hidden)
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Before
We use an online instrument to survey US residents who rent their homes. This instrument collects demographic information about each respondent, including age, race, gender, education, income, and number of children. Respondents who respond incorrectly to an attention question are not allowed to complete the survey.
The survey asks respondents to consider a hypothetical scenario where they must move to a new rental home. We ask respondents what number of bedrooms and monthly rent they would be interested in. We then show each respondent a choice set with 5 hypothetical homes with randomly generated characteristics and ask them to select their most preferred option. Respondents cannot move on to the next question until 10 seconds have elapsed. This question is then repeated 13 more times with new choice sets.
Half of respondents are randomly assigned to an information treatment about body cameras. For these respondents, the following paragraph is added to the description of police force and its reminder text:
"Assume that police officers wear body cameras as part of their uniforms to document what they see as they perform their duties. Use of force incidents are recorded, and citizens can request access to body camera footage involving themselves.''
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After
We use an online instrument to survey US residents who rent their homes. This instrument collects demographic information about each respondent, including age, race, gender, education, income, and number of children. Respondents who respond incorrectly to attention questions are not allowed to complete the survey.
The survey asks respondents to consider a hypothetical scenario where they must move to a new rental home. We ask respondents what number of bedrooms and monthly rent they would be interested in. We then show each respondent a choice set with 5 hypothetical homes with randomly generated characteristics and ask them to select their most preferred option. Respondents cannot move on to the next question until 10 seconds have elapsed. This question is then repeated 13 more times with new choice sets. Of the 14 decision rounds, the first two and the eight rounds serve as attention checks. Participants who don't pass the first two rounds (those that do not pick dominating options) will be exited out of the survey.
Half of respondents are randomly assigned to an information treatment about body cameras. For these respondents, the following paragraph is added to the description of police force and its reminder text:
"Assume that police officers wear body cameras as part of their uniforms to document what they see as they perform their duties. Department regulations require that use of force incidents are recorded, and citizens can request access to body camera footage involving themselves.
However, officers may fail to activate body cameras. A research study finds that police only activated these cameras around 24% of the time they were supposed to, and some officers disproportionally under-activated body cameras."
The control group only receives the first paragraph.
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Field
Secondary Outcomes (End Points)
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Before
We are interested in how the willingness to pay measures depend on various crime conditions (high and low crime) and demographic characteristics (e.g., race, age, and income)
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After
We are interested in how the willingness to pay measures depend on various crime conditions (high and low crime) and demographic characteristics (e.g., minority status, education levels, and income levels)
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