Experimental Design
We plan to recruit 750 students who are about to take the Abitur. The final exams account for one third of their Abitur average, and they also function as the college entrance exams. These students would take three surveys. The key questions in the survey include the stated goal for the Abitur average, recollection of their stated goal and the recall accuracy, wellbeing as a function of academic performance, response time to key questions, as well as subject-specific performance, attitudes, and reported effort.
The experimental variations are implemented in the surveys. There are two major forms of variations to incentivize recalling the original goal. Ex-ante incentive refers to the kind of intervention where we inform students after they stated their goal of performance (Survey 1) that we will ask them about their original goal in specified waves in the future. Ex-post incentive refers to the kind of intervention where students are not given heads-up about the memory question in a specific wave, but questions that incentivize them to remember pop up unexpectedly in Survey 2 and 3. These two conditions are compared to None (No Incentives), which means that the question about goal recall is asked but not incentivized. In terms of these variations, we split the sample into seven groups (A, B, C, D, E, F, G)
Group A, B, C, D includes information in Survey 1 that informs students that the recall questions about their original goal will be asked in either Survey 2 or Survey 3. They will get an extra 5 euro if their answer is correct in the corresponding survey. The specific survey where the questions appear are listed below:
(A) (125 students) - Ex-ante for Survey 2, None for Survey 3,
(B) (125 students) - Ex-ante for Survey 2, Ex-post for Survey 3,
(C) (100 students) - None in Survey 2, Ex-ante for Survey 3,
(D) (100 students) - Ex-Post in Survey 2, Ex-ante for Survey 3,
In Group A and B, students are informed in Survey 1 that we will ask their original goal in an incentivized manner in Survey 2. In Group C and D, we will ask about their original goal in an incentivized manner in Survey 3. Note that for Ex-Post we would not inform students beforehand, although the incentivized goal recall question and its incentive will appear in the same form in the survey. None means that the question that ask students to recall also appear but would not be incentivized.
In Group E, F, G, students are not informed in Survey 1 that they might be questions that ask them recall their goal.
(E) (100 students) - Ex-post in Survey 2 + None in Survey 3
(F) (100 students) - None for Survey 2 + Ex-post for Survey 3
(G) (100 students) - None for Survey 2 + none for Survey 3
Note that not informing students in Survey 1 does not mean that the questions that ask students to recall does not appear. As we explained above, all Ex-post intervention includes the incentivized recall questions, so in Group E, the recall question in Survey 2 will actually be incentivized and the recall question in Survey 3 will not be incentivized, despite the plan that students will not be told about them in Survey 1.
In terms of the exact timing, Survey 1 is scheduled to take place right before Abitur exams take place. Survey 2 is scheduled to take place 4~6 months after the exams. Survey 3 is scheduled to take place 12~18 months after the exams.