Explain the limitations of the Transtheoretical Model (TTM). Focus on its uti

 
Explain the limitations of the Transtheoretical Model (TTM). Focus on its uti

 
Explain the limitations of the Transtheoretical Model (TTM). Focus on its utilization in public health research, specifically qualitative studies.
Please provide at least one example of the qualitative study utilizing TTM as its theoretical framework and explain how the TTM informed the design of the research questions.   
Support your arguments with academic sources.