Final answer:
Laurie's concerns about The Wave are based on its suppression of individual identity, incidents of physical violence, and the potential for psychological harm within its enforced unity.
Step-by-step explanation:
The student's question pertains to The Wave, a novel by Todd Strasser that examines the effects of a social experiment in a school that spirals out of control. Laurie's concern that The Wave might be causing physical and psychological violence is underpinned by a number of pieces of evidence within the narrative. Firstly, participants in The Wave are encouraged to suppress their personal identities, which results in psychological conflict. Secondly, there are incidences within the story where The Wave's emphasis on unity and community enforcement leads to physical violence against those who don't conform or who question the movement. Lastly, such a highly regimented and controlled environment can lead to psychological harm, demonstrating the potential for psychological violence among The Wave's members.