15. Lay, C. H. (1990). Working to schedule on personal projects: An assessment of person-project characteristics and trait procrastination. Journal of Social Behavior and Personality, 5, 91–103.
16. McCown, W. (1986). Behaviour of chronic college-student procrastinators: An experimental study. Social Science and Behavioural Documents, 17, 133.
17. Steel, P. (2007), op. cit., p. 77.
18. Ibid.
19. Haycock, L. A. (1993). The cognitive mediation of procrastination: An investigation of the relationship between procrastination and self-efficacy beliefs. (Doctoral dissertation, University of Minnesota, 1993). Dissertation Abstracts International, 54, 2261.
20. Enns, M. W., & Cox, B. J. (2002). The nature and assessment of perfectionism: A critical analysis. In G. L. Flett, & P. L. Hewittt (Eds.), Perfectionism: Theory, research, and treatment (pp. 33–62). Washington, D.C.: American Psychological Association; Slaney, R. B., Rice, K. G., & Ashby, J. S. (2002). A programmatic approach to measuring perfectionism: The Almost Perfect Scales. In G. L. Flett, & P. L. Hewitt (Eds.), Perfectionism: theory, research, and treatment (pp. 63–88). Washington, D.C.: American Psychological Association.
21. Borenstein, S. (2007, January 12). Study is a put off: Scientists research why procrastination is getting worse. USAtoday.com. Retrieved April 17, 2007, from www.usatoday.com/tech/science/2007–01–12-procrastination-study_x.htm.
22. Slaney, R. B., Rice, K. G., & Ashby, J. S. (2002), op. cit.
23. Frost, R. O., Heimberg, R. G., Holt, C. S., Mattia, J. L., & Neubauer, A. L. (1993). A comparison of two measures of perfectionism. Personality and Individual Differences, 14, 119–128.
24. Rice, K. G., & Ashby, J. S. (2007). An efficient method for classifying perfectionists. Journal of Counseling Psychology, 54[1], 72–85.
25. Ibid.
26. Kachgal, M. M, Hansen, L. S., & Nutter, K. J. (2001). Academic procrastination prevention/intervention: Journal of Developmental Education, 25, 14–24.
27. Steel, P. (2007), op. cit.
28. Ibid.
29. Ibid.
30. Ibid., p. 75.
31. Ibid.
32. Hitti, M. (2004). It’s never too late to stop procrastinating. Retrieved March 5, 2008, from www.webmd.com/balance/guide/its-never-too-late-to-stop-procrastinating.
33. Tice, D. M., & Baumeister, R. F. (1997), op. cit.
34. Sirois, F. M. (2007). I’ll look after my health, later: A replication and extension of the procrastination-health model with community-dwelling adults. Personality and Individual Differences, 43[1], 15–26.
35. Bogg, T., & Roberts, B. W. (2004). Conscientiousness and healthrelated behaviors: A meta-analysis of the leading behavioral contributors to mortality. Psychological Bulletin, 130, 887–919.
36. Cynkar, A. (2007). A towering figure. Monitor on Psychology, 38[4]. Retrieved June 9, 2007 from www.apa.org/monitor/apr07/towering.html.
37. Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision and risk. Econometrica, XLVII, 263–291.
38. Mazur, J. E. (1998). Procrastination by pigeons with fixed interval response requirements. Journal of Experimental Analysis of Behavior, 69, 185–197.
39. National Institute of Mental Health Science News Online (2004). Brain’s reward circuitry revealed in procrastinating primates. August 10. Retrieved March 1, 2008, from www.nimh.nih.gov/science-news/2004/brains-reward-circuitry-revealed-in-procrastinating-primates.shtml. Referring to Liu, Z., Richmond, B. J., Saunders, R. C., Steenrod, S., Stubblefield, B. K., Montague, D. M., & Ginns, E. I. (2004). DNA targeting of rhinal cortex D2 receptor protein reversibility blocks learning of cues that predict reward. Proceedings of the National Academy of Sciences of the United States of America, 101[33], 12336–12341.
40. Schouwenburg, H. C., & Groenewould, J. T. (2001). Study motivation under social temptation; Effects of trait procrastination. Personality and Individual Differences, 30, 229–240.
41. Akerlof, G. A. (1991). Procrastination and obedience. American Economic Review, 81[2], 1–19.
42. Ibid.
43. O’Donoghue, T., & Rabin, M. (1999). Doing it now or later. American Economic Review, 89[1], 103–124.
44. Ibid.
45. Ibid.
46. Ibid.
47. Brafman, O., & Brafman, R. (2008). Sway: The irresistible pull of irrational behavior. New York: Doubleday.
48. Schouwenburg, H., Lay, C., Pychyl, T., & Ferrari, J. (2004). Counseling the procrastinator in academic settings. Washington, D.C.: American Psychological Association.
49. Steel, P. (2007), op. cit.
50. Ainslie, G. (1992). Picoeconomics: The strategic interaction of successive motivational states within the person. New York: Cambridge University Press.
51. Bandura, A. (1997). Self-efficacy: The exercise of control. New York: Freeman
52. Steel, P. (2007), op. cit.
53. Eisenberger, R. (1992). Learned industriousness. Psychological Review, 99, 248–267.
54. Dweck, C. (2006). Mindset: The new psychology of success. New York: Ballantine.
55. Steel, P. (2007), op. cit.
56. Silver, M. (1974). Procrastination. Centerpoint, 1, 49–54.