Fig 1.
Visualizations of the three layers of Dunbar’s Number.
(a) Overview of the three layers (b) The inner layer support group highlighted in orange (c) The middle layer empathy group highlighted in orange (d) The outer layer supported highlighted in orange.
Fig 2.
Visual scale [89] (a) and histogram for core network density (b).
Participants were given the following instructions: The images below represent the connections between your current relationships. Each person is represented by a blue circle. Once again you are not pictured in the images. The more lines there are between people (circles), the more interconnected your relationships would be. Which of the choices below best represents how connected your relationships are to one another?.
Fig 3.
Visual scale [89] (a) and histogram for core network communities (b).
Participants were given the following instructions: Here, we once again want you to think about groups. Some of the relationships you entered may be part of the same groups—for example, you hang out together or are on the same trivia team. The images below represent the groups linked to your 8 relationships. Each group is represented by a set of connected circles. The more groups of people that are pictured (connected circles), the more distinct groups you belong to. Which of the choices below best represents the number of distinct groups that you belong to?.
Table 1.
Bivariate correlations between variables.
Fig 4.
Variability in energy allocation to each layer of Dunbar’s Number indicated by four random participants in four quartiles (a, b, c, d) of the standard deviations (SDs) of energy allocation.
Fig 5.
Variability in energy allocation to each relationship in core networks indicated by four random participants in four quartiles (a, b, c, d) of the standard deviations (SDs) of energy allocation.
Table 2.
OLS regression models predicting energy allocation.
Table 3.
Energy allocation to relationships within core network.