Final answer:
Organizational countercultures often oppose and challenge the dominant culture within an organization. The statement suggesting that countercultures strengthen the dominant culture is false because countercultural presence can lead to change or tension rather than reinforcement.
Step-by-step explanation:
Organizational countercultures challenge the existing organizational culture by promoting alternative values and beliefs, which can lead to tension and conflict within the organization. Hence, the statement 'Organizational countercultures further strengthen the organization's dominant culture' is false, because countercultures often exist in opposition to dominant cultures, creating a dynamic that can either challenge the status quo or lead to changes within the organizational culture. This dynamic can result in either organizational change or the reinforcement of existing values, if the dominant culture successfully resists the countercultural influence.