Author(s) This pre-registration is currently anonymous to enable blind peer-review. It has one author.
Pre-registered on 08/25/2021 06:51 AM (PT)
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? U.S. American participants estimation (and the rate of misestimation) of the ratio between the USA and a target country GDP per capita (corrected for purchasing power) will correlate
-negatively with their agreement to send aid to the target country
-negatively with the perception that the target country is a military threat to the USA
-negatively with the agreement with a statement that it should be easier for people in the target country to emigrate to the USA
3) Describe the key dependent variable(s) specifying how they will be measured. Estimation (Nigeria example, on 0-200 slider):
For every $100 of GDP per capita (PPP) in 2019 in the USA , how many GDP per capita (PPP) dollars do you think Nigeria had in 2019?
Please reply on this slider. Note that 100 means that the USA and Nigeria had exactly the same GDP per capita in this year; 200 means that Nigeria had double the GDP per capita compared with the USA; 1 means that Nigeria had 1/100 of the GDP per capita compared to the USA.
Attitudes:Three items anchored at 1 = not at all and 7 = very much
Do you think the USA should send aid to this country?
Do you think this country is a military threat to the USA?
Do you think people it should be easier for people in this country to immigrate to the USA?
4) How many and which conditions will participants be assigned to? Six conditions within-participants (target country: Nigeria, Mexico, India, China, Russia, Brazil; presented in random order). In each condition (after being explained what it is and completing three comprehensions checks) participants will indicate the proportion between the country GDP per capita (corrected for purchasing power) and the three focal question.
5) Specify exactly which analyses you will conduct to examine the main question/hypothesis. Per each country and after averaging each indicator across countries, correlations between the GDP estimation, the misestimation (obtained subtracting the estimation from the real GDP proportion), attitudes towards immigration, aid, and military threat (specified above)
6) Describe exactly how outliers will be defined and handled, and your precise rule(s) for excluding observations. Participants who reply "Yes" to the question "Have you ever been on the planet Mars?" will be excluded from analyses.
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. 400 U.S. American Prolific participants.
8) Anything else you would like to pre-register? (e.g., secondary analyses, variables collected for exploratory purposes, unusual analyses planned?)
