Glossary I

Invariant prescription refers to a single directive given to parents, designed to create clear boundaries between parents and children.

inverse agonist is a term in Neuroscience which refers to a chemical substance that produces effects opposite those of a particular neurotransmitter.

Inverse projection problem is the idea that a particular image on the retina could have been caused by an infinite number of different objects. Thus, the retinal image does not unambiguously specify a stimulus.

Inversion means turning of the sole of the foot inward or medially, as in standing with the weight on the outer edge of the foot. Please see also Negation.

Inverted pyramid method refers to a step-by-step approach to case conceptualization that gives students and beginning clinicians a specific plan to identify and understand client concerns. Inverted pyramid method involves four (4) steps: problem identification ; thematic grouping; formation of theoretical inferences ; and formation of deeper theoretical inferences.

Investigation is dfined as the systematic and thorough examination and inquiry into something or someone

Investment model refers to the theory holding that people's commitment to a relationship depends on their satisfaction with the relationship in terms of rewards, costs, and comparison level; their comparison level for alternatives; and how much they have invested in the relationship that would be lost by leaving it

Investment model of close relationships according to this model, satisfaction and stability in a relationship depend on the degree to which its partners feel committed to the relationship. Commitment is determined by the balance or trade-off between the positive and negative aspects of the relationship, with the idea that people compare the value of their current relationship with the value of available alternatives