Final answer:
True, political and economic growth in Israel during Hosea's time did not reflect the nation's spiritual health, as the Prophetic Movement highlighted the need for religious and social reforms.
Step-by-step explanation:
The statement that during Hosea's life Israel's political size and economic stability increased, but these factors were not indicators of spiritual vitality, is True. Hosea's era was a time when Israel witnessed growth in political and economic terms; however, this was also a period characterized by religious and moral decline, according to the biblical narrative. The Prophetic Movement arose as a response, with prophets calling for a return to religious purity and social justice, reflecting their belief that political and economic successes did not equate to spiritual health. This is supported by the historical accounts of rulers like Solomon, who was an effective political leader and contributed to the nation's wealth, but whose practices may have veered away from the religious and ethical principles that the prophets were advocating for. Therefore, material prosperity did not reflect the spiritual state of Israel.