Hi. For behavior change: Cardinal's stages of behavior change scale. This scale consists  five questions that you must choose one of them. For exercise behavior,  Five stages of behavior change include the precontemplation stage (participants are not active physically and they have no intention to be active in the next six months), contemplation (participants are not active physically but they have intention to become active in the next six months), preparation stage (the person is intended to change his/her behavior in the next 30 days and has taken some behavioral steps in this direction), action (participants are training regularly for less than six months), and consistency (the participants have retained the regular training for more than six months)

Ajzen, I. (2002).

Constructing a TpB Questionnaire: Conceptual and Methodological Considerations. from http://www.people.umass.edu/aizen/pdf/tpb.measurement.pdf

This addresses willingness and intention in behavioral change in the context of health education.

I agree, Helen. I used this tool before from Ajzen. Mo, hope all is going well!

Thank you Hesam, Helen, and Michael for your feedback! 

All is well Michael, hope everything is good on your side! 

I'll use narrative interview and qualitative research

Thank you Giovanna for your input. I already conducted a qualitative study on this topic, I am currently designing a health promoting intervention and looking to test it quantitatively using a questionnaire that is constructed based on preexisting behavior change theories. 

This work on BCT taxonomy may be useful:

http://www.ncbi.nlm.nih.gov/pubmed/23512568

Thank you Tom, the paper is very helpful. Looks like I will be using different elements from different behavior change theories in order to address my research questions 

Thank you Tom and Muhamad for initiating the discussion on BCT.  I am interested in BCT regarding environemntal issues and disaster management. The taxonomy and the papers suggested are very helpful. 

When it comes to beliefs about Climate change I would suggest C. Sunstein et al. 

https://www.researchgate.net/publication/307888853_How_People_Update_Beliefs_about_Climate_Change_Good_News_and_Bad_News

Article How People Update Beliefs about Climate Change: Good News and Bad News

Thanks Cristina for sharing, it's great to see how BCT works in other disciplines! 

I am looking for a BCT for health care providers post educational session? Any thoughts? Suggestions?

Thank you Helen,

Your recommended TpB instrument helps

we can measure only behaviour> It is very difficult to measure intentions.

Hi! I also have the same concern as Mr. Saab, how to measure the behevior change.

Thank you for your suggestion Ms. Helen. Could you please share about the validity and reliability of a TPB instrument?

TpB may be usefull