2 A systematic review 53 simultaneous decrease in externalizing behavior (Gottfredson et al., 2017; Meldrum et al., 2012; Svensson et al., 2017). One study also reported a similar time-lagged association, indicating that an increase in parental support was followed by an increase in adolescent self-control (Meldrum et al., 2012). However, another study found that an increase in parental support was related to a simultaneous increase in adolescent externalizing behavior (Coley & Medeiros, 2007). Additionally, Gottfredson and Hussong (2011) found no significant concurrent or lagged associations of parental support with several indicators of externalizing behavior. Thus, macro-longitudinal within-family studies on parental support and adolescent externalizing behavior together showed a somewhat inconsistent picture while studies on micro timescales were missing. Three of the 14 studies investigated the within-family link between parental support and internalizing behavior, all on a macro timescale. The findings suggested that adolescents reported more parental support at times they reported higher levels of internalizing behavior (Han & Grogan-Kaylor, 2013). When support of mothers and fathers were examined separately, the results showed again a negative concurrent association for maternal support (Shanahan et al., 2008; Vaughan et al., 2010) but not for paternal support (Shanahan et al., 2008). Hence, these findings provided evidence of a negative concurrent link between parental support and internalizing behavior at a macro timescale, but this evidence seems to be stronger for maternal support than for paternal support. Four of the 14 studies examined associations of parental support with measures of adolescent affective functioning within families, and three of the four studies analyzed the same daily diary dataset. These three studies indicated that the levels of parental support were higher on days when adolescents also reported a more positive mood (Robles et al., 2016) and a less negative mood (Bai et al., 2017; B. M. Reynolds et al., 2016). The fourth study, which was again a daily diary study, did not find a concurrent association of parental sup- port with adolescents’ anxious mood (Lehman & Repetti, 2007). The remaining studies on parental support investigated the associations with a wide range of measures of interpersonal, academic, and physical functioning within families. With respect to interpersonal functioning, micro-longitudinal studies found no concurrent association of parental support with peer problems (Bai et al., 2017; Lehman & Repetti, 2007). A macro-longitudinal study, in contrast, suggested that increasing levels of maternal (but not paternal) warmth were related to simultaneous increases in sibling warmth (Shanahan et al., 2008). Concerning academic functioning, both positive significant and nonsignificant concurrent associations were found between parental support and
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