Quick Food Boxes - WTP - Subject Pool (#52647)
Created: 11/20/2020 03:18 AM (PT) Public: 05/03/2021 11:24 AM (PT) Author(s)
Courtney Szocs (LSU) - cszocs@lsu.edu
Jacob Suher (Portland State University) - jsuher@pdx.edu
Koert van Ittersum (University of Groningen) - k.van.ittersum@rug.nl
1) Have any data been collected for this study already?
No, no data have been collected for this study yet.
2) What's the main question being asked or hypothesis being tested in this study?
We predict that the willingness to pay for a food subscription box will vary based on food aesthetics and processing. For unprocessed foods, consumers will be willing to pay more for the box of aesthetically perfect foods than the box of aesthetically imperfect foods. For processed foods, willingness to pay more for the box of perfect foods will be attenuated.
3) Describe the key dependent variable(s) specifying how they will be measured.
Willingness to pay (WTP):
What is the most you would pay for one box from Quick Food Supplier A containing the foods pictured above?
(please assume free shipping/delivery) [sliding scale from $0 to 10]
What is the most you would pay for one box from Quick Food Supplier B containing the foods pictured above?
(please assume free shipping/delivery) [sliding scale from $0 to 10]
4) How many and which conditions will participants be assigned to?
There will be four conditions:
1) unprocessed foods, perfect foods 2) unprocessed foods, imperfect foods 3) processed foods, perfect foods 4) processed foods, imperfect foods
5) Specify exactly which analyses you will conduct to examine the main question/hypothesis.
We will use repeated measures ANOVA to compare differences in WTP. We will use ANOVA to compare differences in differences within each participants willingness to pay.
6) Describe exactly how outliers will be defined and handled, and your precise rule(s) for excluding observations.
We will exclude individuals who do not finish the survey as well as individuals who indicate they experience issues viewing the image.
"Did you have any issues with the images loading?" [1 = no, 2 = yes]
7) How many observations will be collected or what will determine sample size? No need to justify decision, but be precise about exactly how the number will be determined.
We will make the study available to 300 students subjects. The final sample size will be determined by the number of participants in the subject pool that sign up to complete the study.
8) Anything else you would like to pre-register? (e.g., secondary analyses, variables collected for exploratory purposes, unusual analyses planned?) We will also measure evaluation of each box using a two item scale for each supplier:
What is your overall evaluation of the food box from Supplier A pictured above? (1 = bad, 7 = good) Overall, how much do you like the food box from Supplier A pictured above? (1 = dislike, 7 = like)
What is your overall evaluation of the food box from Supplier B pictured above? (1 = bad, 7 = good) Overall, how much do you like the food box from Supplier B pictured above? (1 = dislike, 7 = like)
Available at https://aspredicted.org/dq2fk.pdf
(Permanently archived at http://web.archive.org/web/*/https://aspredicted.org/dq2fk.pdf) Version of AsPredicted Questions: 2.00
