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The correlations between a low family socioeconomic status (SES) and adolescents' poor academic outcomes have been widely documented. However, the mechanisms through which family SES is associated with adolescents' academic achievement are not well understood. Therefore, this study examined the mediating roles of different types of parental involvement (i.e., parental school-based involvement, academic socialization, and home-based involvement) and the moderating role of adolescents' subjective social mobility in the relationships between family SES and academic achievement by using multisource data. The valid sample consisted of 842 adolescents (x-bar [superscript age] = 12.28 years, 40.97% girls) who were recruited from five township public schools in China. The results indicated that all three types of parental involvement partially mediated the relationships between family SES and adolescents' Chinese and math achievement; parental school-based involvement had the strongest mediating effects, followed by academic socialization, and home-based involvement had the lowest mediating effects. Moreover, the path from parental home-based involvement to Chinese achievement in the mediation model was moderated by the adolescents' subjective social mobility. In conclusion, parental involvement is an important mediating mechanism through which a low family SES impedes adolescents' academic achievement, and adolescents' subjective social mobility can play a buffering role in the relationship between parental home-based involvement and Chinese achievement.

Household income predicts early adolescents' cognitive development. However, the mechanism underlying this association and protective factors are unclear. This study assessed one-year longitudinal data to examine whether perceived discrimination mediated the association between household income and executive function and the moderating role of shift-and-persist. 344 early adolescents in rural China were included in the study (mean = 10.88 years, SD = 1.32 years, girls: 51.74%). The latent variable model revealed that household income predicted early adolescents' cognitive flexibility and working memory in the subsequent year through perceived discrimination. Shift-and-persist moderated the negative effects of perceived discrimination on cognitive flexibility: perceived discrimination impeded cognitive flexibility only among early adolescents with low shift-and-persist. The findings highlight perceived discrimination in the relation between household income and early adolescents' executive function and underscore the protective role of shift-and-persist. [ABSTRACT FROM AUTHOR]

The correlations between a low family socioeconomic status (SES) and adolescents' poor academic outcomes have been widely documented. However, the mechanisms through which family SES is associated with adolescents' academic achievement are not well understood. Therefore, this study examined the mediating roles of different types of parental involvement (i.e., parental school-based involvement, academic socialization, and home-based involvement) and the moderating role of adolescents' subjective social mobility in the relationships between family SES and academic achievement by using multisource data. The valid sample consisted of 842 adolescents ( X ¯ age = 12.28 years, 40.97% girls) who were recruited from five township public schools in China. The results indicated that all three types of parental involvement partially mediated the relationships between family SES and adolescents' Chinese and math achievement; parental school-based involvement had the strongest mediating effects, followed by academic socialization, and home-based involvement had the lowest mediating effects. Moreover, the path from parental home-based involvement to Chinese achievement in the mediation model was moderated by the adolescents' subjective social mobility. In conclusion, parental involvement is an important mediating mechanism through which a low family SES impedes adolescents' academic achievement, and adolescents' subjective social mobility can play a buffering role in the relationship between parental home-based involvement and Chinese achievement. [ABSTRACT FROM AUTHOR]

The taxonomy of woody bamboo presents many difficulties due to its long blooming interval and complex morphological variation. Whether the current taxonomy reflects genuine species divergence within woody bamboo is an intriguing question. The Fargesia spathacea Franch. complex comprises 15 closely related species with a sympatric distribution in China. Their classification has long been controversial because only a handful of vegetative traits are available, providing a good opportunity to explore the evolutionary relationships and genetic differentiation in woody bamboo. Here, we present a study involving 750 individuals from 39 representative populations in the F. spathacea complex using 14 simple sequence repeat markers. We found varying degrees of genetic diversity across populations of the F. spathacea complex (He = 0.07–0.81) and largely negative F‐values at the population level, implying an excess of heterozygotes in the populations. Phylogenetic analyses revealed that all populations were divided into two major groups (clusters A and B), with the majority of the 15 species representing distinct genetic lineages. Based on population genetic analysis along with morphological evidence, we confirmed the identity of three species (F. decurvata J. L. Lu, F. spathacea, and F. murielae Gamble) and suggested the invalidation of four other species (F. scabrida T. P. Yi, F. robusta T. P. Yi, F. denudata T. P. Yi F. murielae (Gamble) T. P. Yi, and F. nitida (Mitford) Keng f. ex T. P. Yi). The delimitation of the remaining eight species has yet to be explored. The analysis of ecological factors and spatial autocorrelation suggested that altitudinal differences might account for the distinct genetic divergence between the two major groups. [ABSTRACT FROM AUTHOR]