The phrase "a form of group" is correct and usable in written English.
It can be used when discussing different types or categories of groups in various contexts, such as sociology, organization, or classification.
Example: "In sociology, a form of group can refer to a collection of individuals who share common interests or goals."
Alternatives: "a type of group" or "a category of group".
He considered role-playing a social thing, a form of group storytelling.
If the sleeping sickness is a form of group hysteria, then it is a very calm sort of hysteria.
He launched Failboat soon afterwards, a regular meeting at which battle-worn CEOs could come together and compare bruises, "almost as a form of group therapy".
The spread of the organic label into areas like Gummi Bears and detergent has helped make the word a form of group identification.
— are shown doing a form of group foraging called plunge diving, in which an entire flock dives straight into the surf at high speed, like kamikaze pilots.
In the late 1970s, Macy developed a form of group work that helped people face their concerns about the world and support each other.
Since the 1990s, proponents of 'multi-level selection theory' have resuscitated a form of group-level selection sometimes called 'new' group selection and shown that it can permit altruism to evolve (cf. Sober and Wilson 1998).
Thus, trait group selection came to represent a form of "new group selection", contrasted with forms of group selection that were likely much more limited in their efficacy and prevalence.
The change that is needed is simply to recognize that forced membership in a group that violates a person's conscience is a form of social group persecution.
Instead, it is more akin to the swing-dancing craze of the 90's -- a form of urban group expression that satisfies a longing for community.
Since its limited beta launch, Noodle has also added what it's calling a Groupon for tutoring, or a form of discounted group buying.
