In the suit, the plaintiffs state that "since at least 2002, the [psychological association] has falsely represented to its
members that a —mandatory— practice or special assessment over and above the annual dues was required for membership in the
[psychological association]. In fact, that assessment (which currently amounts to approximately $140 per member per year)
is completely voluntary and solely required for membership in the 501(c)(6) organization, the APAPO."