“…Two reasons justify the continued investigation on the distinct contribution of psychological need satisfaction and frustration to psychosocial outcomes. First, despite the fact that the BPNSFS has been successfully adapted for both western and non-western samples, (e.g., Peru, China, Belgium, US, and South Africa), most studies made use of cross-sectional (e.g., Chen, Van Assche, Vansteenkiste, Soenens, & Beyers, 2015 ; Chen, Vansteenkiste et al, 2015 ; Van der Kaap-Deeder et al, 2015 ) or diary studies ( Kindt, Vansteenkiste, Loeys & Goubert, 2016 ; Mabbe, Soenens, Vansteenkiste, Van der Kaap-Deeder, & Mouratidis, 2016 ) and only one used an experimental design ( Van Petegem, Soenens, Vansteenkiste, & Beyers, 2015 ). The lack of longitudinal research does not allow to answer the question of whether need satisfaction and frustration have enduring negative relations and bear distinctive effects on adjustment over time.…”