Here's what rhymes with behavioral.

Consider these alternatives

behavioural / hehavioural physiological / logical neuroscience / science psychosocial / social psychology / quality psychological / logical psychotherapy / therapy neurological / logical integrative / native pharmacological / logical schizophrenia / anemia traits / states organizational / educational physiology / quality neurobiology / quality cognition / position neurology / quality morphological / logical pathology / quality affective / effective sciences / alliances hormonal / nonhormonal disabilities / abilities evolutionary / very genetic / magnetic reproductive / productive