As with any religious movement, a theological spectrum exists within Adventism comparable to the fundamentalist moderate liberal spectrum in the wider Christian church and in other religions. A variety of groups such as bible study groups, movements or subcultures within the church present differing views on beliefs and lifestyle. The conservative end of the theological spectrum is represented by historic adventist, who are characterized by their opposition to theological trends within the denomination beginning in the 1950s. They tend to view modern Adventist theology as a compromise with evangelicalism, and seek to defend older teachings such as the fallen nature of Jesus Christ, an incomplete atonement, and character perfectionism.