Final answer:
The concepts and techniques of the Adlerian approach are highly applicable to group counseling.
Step-by-step explanation:
The statement is true. The concepts and techniques of the Adlerian approach are indeed highly applicable to group counseling. Alfred Adler, the founder of the Adlerian approach, emphasized the importance of social connections and believed that an individual's development is influenced by their social environment. In group counseling, these concepts can be applied to help individuals develop a sense of belonging, work together for the common welfare, and recognize the equal rights and equality of others.