I have attached the assignment instructions as well as the work that I have done so far leading up to this assignment. I have had some trouble identifying the research instrument that will be best for this study. 
The article that the gap statement was taken from is: 
Mojallal, M., Simons, R. M., & Simons, J. S. (2021). Childhood maltreatment and adulthood proneness to shame and guilt: The mediating role of maladaptive schemas. Motivation and Emotion, 45(2), 197–210. https://doi.org/10.1007/s11031-021-09866-6
This one may also be useful: 
Lian, A. E. Z., & Bono, S. A. (2023). Refining the Experiential Component of Schema Therapy for Traumatised Populations: a New Continuum of Experiential Techniques. European Journal of Trauma & Dissociation, 7(4), 100352. https://doi.org/10.1016/j.ejtd.2023.100352