Final answer:
Kahl and Gilbert included the component of occupational control in their six-tier model of class in capitalist countries.
Step-by-step explanation:
In addition to the criteria of wealth, power, and prestige, Kahl and Gilbert included the component of occupational control in their six-tier model of class in capitalist countries. Occupational control refers to an individual's level of authority and decision-making power within their occupation or profession. It's worth noting that some discussions of social class may introduce additional categories, such as the "lower class" or the "upper-middle class," to provide more nuanced distinctions. Moreover, modern discussions on class often consider factors beyond just economic status, including educational attainment, cultural capital, and social networks.