Table 2.

Overview of the multiple sources design (main study)

Type of variable	Variable	Source
Treatment	Controllability of the AR app	Manipulated via ARPI
	Detailedness of information	Manipulated via ARPI
Dependent variable	Purchases	Self-reporteda
	Purchase intention	Self-reported
	Brand image	Self-reported
Boundary conditions	Rush hour (consumer stress)	Observed
	Medium	Manipulated
Mediator	Perceived comprehensiveness	Self-reported
Alternative mediators	Perceived credibility	Self-reported
	Perceived complexity	Self-reported
	Perceived user friendliness	Self-reported
Controls	Sociodemographics (gender, age)	Self-reported
	Device experience (tablet ownership)	Self-reported
	Attitude (sustainability attitude)	Self-reported
	Product category knowledge (food knowledge)	Self-reported
	Usage timec	Tracked via ARPI
	Shopping cart filling level	Observedb

^aValidated via samples of shopping cart observations. ^b Only applied as robustness check with a reduced sample of 340

^cBrowsing time in the uncontrollable—nondetailed condition consists of the time that users spent browsing and reading the statements, starting from the moment the statements appeared until they disappeared, either by scrolling, scanning another product, or quitting the app. In the uncontrollable—detailed condition, we measured the time for reading the statements plus the arguments. In the controllable—nondetailed condition, we measured the time spent at the statement level, clicking through the various statements. In the controllable—detailed condition, we added the time spent browsing the arguments