Z:gnu-www-ja-frank--798149-Note, finally, that the overal/en

Note, finally, that the overall defection rate declines significantly as students progress through school. The class coefficient is interpreted to mean that with the passage of each year the probability of defection declines, on the average, by almost 0.07. This pattern will prove important when we take up the question of whether training in economics is the cause of higher defection rates for economics majors.