The goals of the current study were to expand the content domain and further validate the Coercion Assessment Scale (CAS), a measure of perceived coercion for criminally involved substance abusers being recruited into research. Unlike the few existing measures of this construct, the CAS identifies specific external sources of pressure that may influence one’s decision to participate. In Phase 1, we conducted focus groups with criminal justice clients and stakeholders to expand the instrument by identifying additional sources of pressure. In Phase 2, we evaluated the expanded measure (i.e., endorsement rates, reliability, validity) in an ongoing research trial. Results identified new sources of pressure and provided evidence supporting the CAS’s utility and reliability over time as well as convergent and discriminative validity.
AppelbaumP. S.LidzC. W.KlitzmanR. (2009). Voluntariness of consent to research: A conceptual model. The Hastings Center Report, 39(1), 30-39.
2.
CicchettiD. V.FeinsteinA. R. (1990). High agreement but low kappa: II. Resolving the paradoxes. Journal of Clinical Epidemiology, 43, 551-558.
3.
DugoshK. L.FestingerD. S.CroftJ. R.MarloweD. B. (2010). Measuring coercion to participate in research within a doubly vulnerable population: Initial development of the Coercion Assessment Scale. Journal of Empirical Research on Human Research Ethics: An International Journal, 5(1), 93-102.
4.
EdensJ. F.EpsteinM.StilesP. G.PoythressN. G. (2011). Voluntary consent in correctional settings: Do offenders feel coerced to participate in research?Behavioral Sciences & the Law, 29, 771-795.
5.
FadenR. R.BeauchampT. L. (Eds.). (1986). A history and theory of informed consent. New York, NY: Oxford University Press.
6.
FeinsteinA. R.CicchettiD. V. (1990). High agreement but low kappa: I. The problems of two paradoxes. Journal of Clinical Epidemiology, 43, 543-549.
7.
FestingerD. S.DugoshK. L. (2012). Improving the informed consent process in research with substance-abusing participants. In ChapmanA. R. (Ed.), Genetic research and addiction: Ethics, the law, and public health (pp. 41-60). New York, NY: Cambridge University Press.
8.
FleissJ. L. (1981). Statistical methods for rates and proportions (2nd ed.). New York, NY: John Wiley.
9.
GardnerW.HogeS.BennettN.RothL.LidzC.MonahanJ.MulveyE. (1993). Two scales for measuring patients’ performance perceptions of coercion during hospital admission. Behavioral Sciences & the Law, 20, 307-321.
10.
KruegerR. A.CaseyM. A. (2000). Focus groups: A practical guide for applied research (3rd ed.). Thousand Oaks, CA: SAGE.
11.
LefcourtH. M. (Ed.). (1981). Research with the locus of control construct, Vol. 1: Assessment methods. New York, NY: Academic Press.
12.
MarloweD. B.FestingerD. S.DugoshK. L.BenasuttiK. M.FoxG.CroftJ. R. (2012). Adaptive programming improves outcomes in drug court: An experimental trial. Criminal Justice and Behavior, 39, 514-532.
13.
MarshH. W.RichardsG. E. (1987). The multidimensionality of the Rotter I-E Scale and its higher order structure: An application of confirmatory factor analysis. Multivariate Behavioral Research, 22, 39-69.
14.
MillerV. A.ReynoldsW. W.IttenbachR. F.LuceM. F.BeauchampT. L.NelsonR. M. (2009). Challenges in measuring a new construct: Perception of voluntariness for research and treatment decision making. Journal of Empirical Research on Human Research Ethics: An International Journal, 4(3), 21-31.
15.
MoserD. J.ArdntS.KanzJ. E.BenjaminM. L.BaylessJ. D.ReeseR. . . . FlaumM. A. (2004). Coercion and informed consent in research involving prisoners. Comprehensive Psychiatry, 45, 1-9.
16.
National Commission for the Protection of Human Subjects of Biomedical and Behavioral Research. (1979). The Belmont Report: Ethical principles and guidelines for the protection of human subjects of research (DHEW Publication No. (OS) 78-0012). Washington, DC: U.S. Government Printing Office.
17.
RotterJ. B. (1966). Generalized expectancies for internal versus external control of reinforcement. Psychological Monographs: General and Applied, 80(1), 1-28.
18.
StilesP. G.EpsteinM. K.PoythressN. G.EdensJ. F. (2011). Formal assessment of voluntariness with a three-part consent process. Psychiatric Services, 62, 87-89.
