Table 1.

Research and Development Timeline for the High School Growth-Mindset Intervention

Phase	Years	References	Step
1	2010–2012	Paunesku et al. (2015); Yeager, Walton, et al. (2016)	1.1. Test the “base” versions, adapted from lab manipulations
2	2013–2014	Yeager, Romero, et al. (2016)	2.1. Attempts to rewrite
			2.2. A/B tests (N ≈ 3,000)
			2.3. User testing (N ≈ 300)
			2.4. Extensive rewriting to finalize “new” version
3	2014–2015	Yeager, Walton, et al. (2016)	3.1. Head-to-head test of “base” versus “new,” proxy outcome (N ≈ 7,500)
			3.2. Preregistered evaluation of “new” versus control, GPA outcome, convenience sample (N ≈ 3,600)
4	2015–2016	Yeager, Hanselman, et al. (2018)	4.1. Extensive rewriting to finalize “newer” version
			4.2. Preregistered evaluation of “newer” versus control, GPA outcome, national sample

Note: The growth-mindset intervention is freely available for schools in the United States at http://www.perts.net.