Skinner's book “Verbal Behavior”, first published in 1957, presented his ideas on the influence of language that can be used in the framework of behavioral research and analysis. The main argument presented by Skinner was that verbal behavior was different from other forms of behavior and deserved to be separated into a distinct category, and Skinner viewed the development of language as the result of the mediation of other people while nonverbal behavior was imposed through the physical environment. Skinner defined the basic verbal operants in his analysis of verbal behavior, which include the operants mand, tact, intraverbal, echoic, and autoclitic, and distinguished the type of consequence for each operant. Furthermore, the theory defines the audience as a discriminating stimulus that will influence language development as it provides signals of possible rewards or punishments. There was no previous research on the topic, hence the lack of data available for writing the book and the lack of experiments in the book, and the theory was subjected to severe criticism and ignored in the academic community for several decades after its publication ( McPherson, Bonem, Green and Osborne, 1984). Although Skinner's theory of language development was not accepted in the academic community or frequently applied in research until the 1990s (Sundberg, & Michael, 2001), Skinner's theory of verbal behavior successfully defines verbal operants relevant to basic behavioral principles. This essay will show that the main implication for the development of this theory is the severe criticism of Skinner's theory as unfounded and consisting of plagiarized traditional ideas. Despite the criticisms against Skinner's theory, it is questionable whether the criticism itself demonstrates... .at the center of the article...language development studies, the application of Skinner's theory could exclude such errors and prove effective in its applications.Rather than criticizing Skinner's theory on the basis of the lack of empirical evidence presented in his book, or Denying the effectiveness of the theory for several apparently irrelevant reasons, such as the unclear definition of its correlation with a neurological-genetic theory (MacCorquodale , 1970), empirical research should provide clear evidence on the credibility of Skinner's theory. Although the entire theory need not be proven to be successful, several aspects of Skinner's theory have been shown to be effective in conducting behavioral interventions (Sundberg & Michael, 2001). Recent studies show increased use of Skinner's language development framework, so criticism against the theory has obviously been a major implication for its development.