What are the effect of home school communication to the learner?

It all depends on how much socialization the child has with peers of the similar age. If this is limited, it may have an adverse effect. For example, children learn social skills, such as sharing, during play and this is just one example. As a public school teacher and advocate of home schooling, just remember to include outside activities with similar aged peers, and be aware of the neccessary socialization for healthy growth.