A recent meta-analysis has shown that media multitasking behavior, or consuming multiple streams of media simultaneously, might not be associated with less efficient cognitive processing, as measured with objective tests. Nevertheless, a growing number of studies have reported that media multitasking is correlated with cognitive functioning in everyday situations, as measured in self-reports. Here, in a series of mini metaanalyses, we show that the self-reported correlates of media multitasking can be categorized in at least four major themes. Heavy media multitasking was associated with increasing problems with attention regulation (e.g., increased mind-wandering and distractibility), behavior regulation (e.g., emotion regulation and self-monitor), inhibition/impulsiveness (e.g., higher level of impulsiveness and lower level of inhibition), and memory. However, the pooled effect sizes were small (z =.16 to z = .22), indicating that a large proportion of variance of media multitasking behavior is still unaccounted for. Additionally, we witnessed a high level of heterogeneity in the attention regulation theme, which might indicate the presence of the risk of study bias. In recent years, the number of studies investigating the correlates of habitual media multitasking behavior, i.e., consuming multiple streams of media-related information simultaneously, have increased. These studies investigate correlates of media multitaskers using both performance-based and self-reported measures, and have presented an interesting contradiction. On the one hand, the group of studies using performance-based measures, that is, highly controlled psychophysics experiments with clear instructions (e.g., to perform as quickly and as accurately as possible) and clear beginning and end, has shown mixed results. Specifically, some studies showed that Heavy Media Multitaskers (HMMs), compared to Light Media Multitaskers (LMMs) displayed worse performance in different objective, performance-based measures of cognition (Cain, Leonard,