sj-docx-1-jtr-10.1177_00472875231195736 – Supplemental material for The Hidden Power of Sustainable Tourism Indicator Schemes: Have We Been Measuring Their Effectiveness All Wrong?

Supplemental material, sj-docx-1-jtr-10.1177_00472875231195736 for The Hidden Power of Sustainable Tourism Indicator Schemes: Have We Been Measuring Their Effectiveness All Wrong? by Gloria Crabolu, Xavier Font and Graham Miller in Journal of Travel Research</p

Funnel plot.

Funnel plot.</p

Quality assessment questions.

Quality assessment questions.</p

PRISMA flow diagram of information through different stages of review.

PRISMA flow diagram of information through different stages of review.</p

Search strategy.

Search strategy.</p

S1 Appendix -

(DOCX)</p

Nudges in 54 papers included in the meta-analysis.

Nudges in 54 papers included in the meta-analysis.</p

Studies categorized by intervention (nudging) strategy.

Studies categorized by intervention (nudging) strategy.</p

Forest plot.

Note: Where applicable, the number of participants was adjusted by dividing the total number of participants by the number of measures and/or interventions administered to the same group of participants (denoted (i) to (vi); see ([10]). This adjustment does not affect the total number of participants. Note that, while study-level confidence intervals are wider when adjustments are made, estimates of central tendency (i.e., standardised mean difference) are unaffected.</p

Fig 5 -

a. Funnel plot for presentation nudging. b. Funnel plot for incentive nudging. c. Funnel plot for information nudging. d. Funnel plot for information nudging.</p