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| Name | Class |
|---|---|
| Carnegie Mellon University | OTHER |
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Participants will be asked to select a hypothetical lunch from a menu that features entrees, sides, and drinks. Participants will be able to select a maximum of 1 item from each category. Following this meal selection, participants will complete a short survey about their demographics, their estimates of information about the meal and about recommended eating habits.
The presence or absence of calorie labels on the hypothetical lunch menu will be randomly assigned to participants. Participants will first be randomly assigned to either the numeric label survey or the light label survey, and then within that survey, participants will be randomly assigned to either a control (no label), an item-level label, or an item-level and meal-level label condition.
Participants will select a hypothetical lunch from a menu that features entrees, sides, and drinks. Participants will be able to select a maximum of 1 item from each category. Following this meal selection, participants will complete a short survey about their demographics, their estimates of information about the meal and about recommended eating habits.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control 1 | No Intervention | Participants in this group will see a menu labeled with prices, but will not observe calorie information. Used as a comparator for numeric labeling conditions. | |
| Numeric individual | Experimental | Features Item-Level Calorie information. Numeric calorie labels will be featured on individual items, along with prices. |
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| Numeric individual + aggregate | Experimental | Features Item-Level Calorie information and Meal-Level Calorie information. Numeric calorie labels will be featured on individual items, along with prices. Additionally, an aggregated numeric calorie count for the entire meal will be dynamically updated as items are added or removed from the meal. |
|
| Control 2 | No Intervention | Participants in this group will see a menu labeled with prices, but will not observe calorie information. Used as a comparator for light labeling conditions. | |
| Light individual | Experimental | Features Item-Level Calorie information. Traffic light calorie labels will be featured on individual items, along with prices. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Item-Level Calorie information | Other | Information identifying the calorie content of individual items will be provided, as would be done on a restaurant menu board. |
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| Measure | Description | Time Frame |
|---|---|---|
| Calories ordered | Single survey presentation, measure of calories ordered collected as people select meal | 5 minutes after presentation of information |
| Measure | Description | Time Frame |
|---|---|---|
| Light category ordered | Single survey presentation, measure of what aggregated light the calories ordered would have qualified for. Collected as people select meal | 5 minutes after presentation of information |
| Calories per category |
| Measure | Description | Time Frame |
|---|---|---|
| Sequence of items selected | Single survey presentation, measure of which items were added (and subtracted) from the meal. Both offers a count of number of items considered and a measure of calories "removed" from meal. | 5 minutes after presentation of information |
Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Eric VanEpps, PhD | Postdoctoral Fellow | Principal Investigator |
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|
| Light individual + aggregate | Experimental | Features Item-Level Calorie information and Meal-Level Calorie information. Traffic light calorie labels will be featured on individual items, along with prices. Additionally, an aggregated traffic light label for the entire meal will be dynamically updated as items are added or removed from the meal. |
|
| Meal-Level Calorie information | Other | Information from the calorie content of individual items that have been selected by the participant will be dynamically aggregated and presented as a "Total Calories" label on the menu screen. |
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Single survey presentation, measure of calories per entree, calories per side, and calories per drink selected, collected as people select meal
| 5 minutes after presentation of information |