27,780 rated or chosen profiles from 1,389 respondents, in up to 10 tasks of 2 profiles varying on 6 attributes.

One of 2 tables from the same source; this one is the osprey table. The others are listed under Related tables.

About this table

Description	Japanese adults (national online sample of 1,002 plus an Okinawa oversample of 387) chose which of two plans to deploy MV-22 Osprey aircraft in Japan they supported, over 10 pairs varying the host camp, operating force (US military / Self-Defense Forces), regional incentives, force size, night training and training range. Forced choice.
Reference	Horiuchi, Y., & Tago, A. (2024). U.S. military should not be in my backyard: Conjoint experiments in Japan. Journal of Conflict Resolution, 68(9), 1798-1824.
DOI	10.1177/00220027231203607
Licence	CC0 1.0
Source data	https://doi.org/10.7910/DVN/ZIRSC1

Notes

Conjoint table (irw_conjoint). choice: which of two Osprey deployment plans (計画案A / 計画案B) the respondent supports more, forced ("if you cannot say clearly, choose the one you would rather support"), no opt-out. 10 pairs; 6 attributes, attribute order randomized per respondent. National and Okinawa oversample pooled; authors' sample filters (reCAPTCHA score, Okinawa residence) not applied but recoverable from cov_ columns; the authors analyse tasks 1-7 only.

These notes describe the source data, which the IRW reproduces as released. All notes are listed on the Data Notes page.

Design

Topic	foreign policy security
A profile represents	policy
Country	JP
Language shown	ja
Language of stored levels	ja
Randomization restrictions	unknown
Task order	recorded in the deposit
Profile position	recorded in the deposit

Outcomes:

choice

仮に、オスプレイの新規配備について以下のような二つの案が出ていると想定してください。あなたはどちらの計画案をより支持しますか。もし、どちらを支持するかはっきりとは言えない場合でも、どちらか一方、あえていえば支持する方を選んでください。どちらを支持しますか。 [choice, forced]

Columns

attr_force_sizeattr_locationattr_night_trainingattr_operated_byattr_regional_incentivesattr_training_rangeattrpos_force_sizeattrpos_locationattrpos_night_trainingattrpos_operated_byattrpos_regional_incentivesattrpos_training_rangechoicecov_agecov_duration_seccov_educationcov_gendercov_ideologycov_incomecov_party_idcov_prefecturecov_recaptcha_scorecov_samplecov_turnoutidprofiletask

The layout (one row per respondent, task and profile; choice/rating outcomes; attr_ columns holding each attribute level as displayed) is defined in the IRW conjoint standard. What the outcomes asked is under Design above.

Get the data

Download CSVno account needed Browse on Redivisexplore and query Croissant metadataHugging Face, Kaggle, OpenML

Or load it directly in R or Python (both need a free Redivis account; the first call opens a browser to sign in):

# R
install.packages("remotes")
remotes::install_github("itemresponsewarehouse/Rpkg")
library(irw)
df <- irw_fetch("horiuchi_2024_osprey", source = "conj")

# Python
pip install irw

import irw
df = irw.fetch("horiuchi_2024_osprey", source="conj")

How to cite

@article{Horiuchi_2023, title={U.S. Military Should Not Be in My Backyard: Conjoint Experiments in Japan}, volume={68}, ISSN={1552-8766}, url={http://dx.doi.org/10.1177/00220027231203607}, DOI={10.1177/00220027231203607}, number={9}, journal={Journal of Conflict Resolution}, publisher={SAGE Publications}, author={Horiuchi, Yusaku and Tago, Atsushi}, year={2023}, month=Sept, pages={1798–1824} }

Respondents	1,389
Rows (one per respondent, task and profile)	27,780
Tasks per respondent (most)	10
Profiles per task	2
Attributes	6
Tasks with no profile chosen	0

IRW version	v584
Redivis dataset	irw_conjoint v4.2
Redivis dataset DOI	10.57761/qkye-q530
Manifest pin for this IRW version	v4.2
Metadata source	irw_meta v44.0

horiuchi_2024_osprey