Why Psychology Cannot Choose Between Subjectivity and Objectivity

The Cartesian split between subjective interiority and objective exteriority has structured psychology's self-understanding for centuries, generating an unresolvable oscillation between behaviorist observation and phenomenological introspection. This analysis argues that both poles are internally incoherent and that the way forward lies not in synthesis but in recognizing a more fundamental category: intersubjectivity.

Subjectivity collapses via Wittgenstein's private language argument. If mental states were epistemically sealed — each person's experience a 'beetle in a box' accessible only to its owner — then psychological predicates could never acquire shared meaning. The very functionality of emotion terms in ordinary language demonstrates that experience is not a priori private. Objectivity collapses from the opposite direction: psychological observation is always already saturated with normative and intentional content. Concepts like agency, moral development, or social competence cannot be reduced to value-free behavioral descriptions without destroying the phenomena they pick out. The data of psychology are never raw; they arrive pre-interpreted through frameworks laden with evaluative commitments.

The resolution is that psychological meaning originates in the relational, semiotic exchanges between persons — paradigmatically, in the caregiver-child dyad where expressions are named, feelings are co-constructed, and self-knowledge emerges as the internalization of socially mediated categories. Children do not first have private experiences and then learn to express them; their experiences are partly constituted by the interactive processes through which those experiences are articulated. This reframes scientific rigor itself: not as correspondence between theory and mind-independent data, but as progressive corroboration of intersubjectively mediated descriptions, constrained from multiple directions, openly value-laden, and more epistemically honest for acknowledging that fact.