The effectiveness of Tier 2 interventions may depend on the variability of student skills within an intervention group. We investigated the effect of initial variability within intervention groups using data from a large-scale study of ROOTS, a Tier 2 kindergarten mathematics intervention. Our research questions were as follows: Does mathematics…

The effectiveness of Tier 2 interventions may depend on the variability of student skills within an intervention group. We investigated the effect of pretest variability within intervention groups using data from a large-scale study of ROOTS, a Tier 2 kindergarten mathematics intervention. Our research questions were as follows: Does mathematics…

Sexual minority adolescents--those self-identifying as lesbian, gay, or bisexual (LGB) or with same-sex desires or sexual experiences--report higher rates of victimization and suicidality than their heterosexual peers, yet little empirical research has examined school factors associated with these risks. This study used data from the Massachusetts…