Final answer:
In her psychophysics studies, Lavonda is most likely to encounter the work of Gustav Fechner, who was instrumental in establishing the field and is best known for Fechner's Law.
Step-by-step explanation:
Lavonda is studying psychophysics, a branch of Psychology concerned with the relationship between physical stimuli and their subjective correlates, or perceptions. In her studies, she is most likely to discover the work of Gustav Fechner, who is regarded as one of the founders of psychophysics and proposed the famous Fechner's Law which quantifies the perception of a change in a physical stimulus. Behaviorism, which involves the study of behavior and its relation to the mind, was developed by several influential psychologists such as Ivan Pavlov, known for his work on classical conditioning, and B.F. Skinner, who is well-known for operant conditioning. Skinner and Edward Thorndike explored the effects of consequences on behavior, developing principles like reinforcement and punishment. Intelligence researcher Jean Piaget is known for his theory of cognitive development, which explains how children develop intellectually throughout the course of childhood. In contrast to behaviorists, Gustav Fechner was interested in how subjective experiences are connected to physical stimuli, essentially laying the groundwork for what we understand as psychophysics today.