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Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory

Year 2014, , 12 - 23, 01.03.2014
https://doi.org/10.20876/ijobed.66052

Abstract

Education on sleep hygiene improves sleep knowledge. However, the literature shows that improvements in adolescents’ sleep hygiene behaviour are less convincing. We developed an educational intervention for 6th graders based on self-determination theory and evaluated this program in a pre-post-design with a control group. Pre-test was one week before the intervention, POST1 was directly afterwards, POST2 with a delay of one week, and POST3 after six weeks. Morningness was positively correlated with good sleep practice. The intervention increased pupils’ theoretical sleep knowledge and knowledge about good sleep practices. However, their actual sleep practices did only improve in a short-term period but then became worse. We suggest that interventions might be longer and should last over the whole school year

References

  • Adachi, Y., Sato, C., Kunitsuka, K., Hayama, J., & Doi, Y. (2008). A brief behavior therapy administered by correspondence improves sleep and sleep-related behavior in poor sleepers. Sleep and Biological Rhythms, 6, 16–21.
  • Adan, A., Fabbri, M., Natale, V., & Prat, G. (2006). Sleep Beliefs Scale (SBS) and circadian typology. Journal of Sleep Research, 15, 125–132.
  • Arendt, J. (2006). Melatonin and human rhythms. Chronobiology International, 23, 21–37.
  • Ausubel, D.P. (1968). Educational Psychology: A Cognitive View. New York: Holt, Rinehart & Winston.
  • Azevedo, C.V.M., Sousa, I., Ketema, P., McLeish, M. Y., Mondéjar, M. T., Sarabia, J. A., Rol, M. A., & Madrid, J. A. (2008). Teaching Chronobiology and sleep habits in school and University. Mind, Brain and Education, 2, 34-47.
  • Brown, F. C., Buboltz, W. C., & Soper, B. (2006). Development and evaluation of the sleep treatment and education program for students (STEPS). Journal of American College Health, 54, 231-237.
  • Buckhalt, J. A., El-Sheikh, M., & Wolfson, A. R. (2009). Children's sleep and school psychology practice. School Psychology Quarterly, 24, 60–69.
  • Cain, N., Gradisar, M., & Moseley, L. M. (2011). A motivational school-based intervention for adolescent sleep problems. Sleep Medicine, 12, 246–251.
  • Carskadon, M. A., Harvey, K., Duke, P., Andres, T. F., Litt, I. F., & Dement, W.C. (1980). Pubertal changes in daytime sleepiness. Sleep, 2, 453-460.
  • Carskadon, M. A. (1990). Patterns of sleep and sleepiness in adolescents. Pediatrician, 17, 5–12.
  • Carskadon, M. A., Wolfson, A. R., Acebo, C., Tzischinsky, O., & Seifer, R. (1998). Adolescent sleep patterns, circadian timing, and sleepiness at a transition to early school days. Sleep, 21, 871–881.
  • Carskadon, M. A. (2004). Sleep deprivation: health consequences and societal impact. Medical Clinics of North America, 88, 767–776.
  • Carskadon, M. A. (2011). Sleep in adolescents: The perfect storm. Pediatric Clinics of North America, 58, 637– 647.
  • Connell, J. P., & Wellborn, J. G. (1991). Competence, autonomy, and relatedness: A motivational analysis of self-system processes. In M. R. Gunnar & L. A. Sroufe (Eds.), Self processes and development. The Minnesota symposium on child psychology. (pp. 43–77). Hillsdale, NJ : Lawrence Erlbaum Associates, Inc.
  • Crowley, S. J., Acebo, C., & Carskadon, M. A. (2007). Sleep, circadian rhythms, and delayed phase in adolescence. Sleep Medicine, 8, 602–612.
  • Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self-determination in human behavior. New York: Plenum Press.
  • Deci, E. L., & Ryan, R. M. (1991). A motivational approach to self: Integration in personality. In R. Dienstbier (Ed.), Nebraska Symposium on Motivation: Vol. 38: Perspectives on Motivation (pp.237-288). Lincoln, NE.: University of Nebraska Press.
  • Díaz-Morales, J. F., Prieto, P. D., Barreno, C. E., Mateo, J. C., & Randler, C. (2011). Sleep beliefs and chronotype among adolescents: the effect of a sleep education program. Biological Rhythm Research, 43, 397-412.
  • Digdon, N. (2010). Circadian preference and college students’ beliefs about sleep education. Chronobiology International, 27, 297-317.
  • Escribano, C., Díaz-Morales, J. F., Delgado, P., & Collado, M. J. (2012). Morningness/eveningness and school performance among Spanish adolescents: Further evidence. Learning and Individual Differences, 22, 409-413.
  • Fromm, E., Horlebein, C., Meergans, A., Niesner, M., & Randler, C. (2011). Evaluation of a wake-up light in children and adolescents. Biological Rhythm Research, 42, 417–425.
  • Gallasch, J. (2007). Relationships between sleep knowledge, sleep practice and sleep quality. Sleep and Biological Rhythms, 5, 63-73.
  • Giannotti, F., Cortesi, F., Sebastiani, T., & Ottaviano, S. (2002). Circadian preference, sleep and daytime behavior in adolescence. Journal of Sleep Research, 11, 191–199.
  • Giménez, MC., Hessels, M., van de Werken, M., Vries, B. de, Beersma, D. G. M., & Gordijn, M. C. M. (2010). Effects of artificial dawn on subjective ratings of sleep inertia and dim light melatonin onset. Chronobiology International, 27, 1219–1241.
  • Grolnick, W. S., & Ryan, R. M. (1987). Autonomy in children’s learning: An experimental and individual difference investigation. Journal of Personality and Social Psychology, 52, 890-898.
  • Hagenauer, M. H., Perryman, J., Lee, T. M., & Carskadon, M. A. (2009). Adolescent changes in the homeostatic and circadian regulation of sleep. Developmental Neuroscience, 31, 276–284.
  • Hansen, M., Janssen, I., Schiff, A., Zee, P. C., & Dubocovich ML (2005). The Impact of School Daily Schedule on Adolescent Sleep. Pediatrics, 115, 1555–1561.
  • Kaiser, F. G., Roczen, N., & Bogner, F. X. (2008). Competence formation in environmental education: advancing ecology-specific rather than general abilities. Umweltpsychologie, 12, 56-70.
  • Kanerva, N., Kronholm, E., Partonen, T., Ovaskainen, M. L., Kaartinen, N. E., Konttinen, H., Broms, U., & Männistö, S. (2012). Tendency toward eveningness is associated with unhealthy dietary habits. Chronobiology International, 29, 920-927.
  • Klein, J. (2004). Planning middle school schedules for improved attention and achievement. Scandinavian Journal of Educational Research, 48, 441–450.
  • Kryger, M. H., Roth, T., & Dement, W. (2000). Principles and practice of sleep medicine. 3rd ed. Philadelphia (PA): WB Saunders.
  • LeBourgeois, M. K., Giannotti, F., Cortesi, F., Wolfson, A. R., & Harsh, J. (2005). The relationship between reported sleep quality and sleep hygiene in Italian and American adolescents. Pediatrics, 115, 257-265.
  • Lou, V., Abrami, P. C., Spence, J. C., Poulsen, C., Chambers, B., & d’Apollonia, S. (1996). Within-class grouping: a meta-analysis. Review of Educational Research, 66, 423-458
  • Moseley, L., Psyc, M., & Gradisar, M. (2009). Evaluation of a School-Based Intervention for Adolescent Sleep Problems. Sleep, 32, 334-341.
  • Noland, H., Price, J. H., Dake, J., & Telljohann, S. K. (2009). Adolescents’ sleep behaviors and percep-tions of sleep. Journal of School Health, 79, 224–230.
  • Randler, C. (2008). Differences in sleep and circadian preference between eastern and western German adolescents. Chronobiology International, 25, 565-575.
  • Randler, C., & Frech, D. (2006). Correlation between morningness – eveningness and final school leaving exams. Biological Rhythm Research, 37, 233–239.
  • Randler, C., & Frech, D. (2009). Young people’s time-of-day preferences affect their school performance. Journal of Youth Studies, 12, 651-665.
  • Randler, C., Bilger, S., & Díaz–Morales, J. F. (2009). Association between sleep, chronotype, parental monitoring and pubertal development in German adolescents. The Journal of Psychology, 143, 509-520.
  • Roenneberg, T., Kuehnle, T., Pramstaller, P., Ricken, J., Havel, M., Guth, A., & Merrow, M. (2004). A marker for the end of adolescence. Current Biology, 14, 1038-R1039.
  • Rossi, C. M., Campbell, A. L., Vo, O. T., Marco, C. A., & Wolfson, A. R. (2002). Middle school sleep-smart program: a pilot evaluation. Sleep, 25, A279.
  • Ryan, R. M. (2012). The Oxford Handbook on Human Motivation. Oxford University Press: Oxford.
  • Ryan, R. M., & Deci, E. L. (2000). Self-Determination Theory and the Facilitation of Intrinsic Motivation, Social Development, and Well-Being. American Psychologist, 55, 68-78.
  • Ryan, R. M., & Deci, E. L. (2002). An overview of self-determination theory. In E. L. Deci & R. M. Ryan (Eds.), Handbook of self-determination research (pp. 3-33). Rochester, NY: University of Rochester Press.
  • Schaal, S & Bogner, F (2005). Human visual perception - learning at workstations. Journal of Biological Education, 40, 32-37.
  • Smith, C. S., Reilly, T. C., & Midkiff, K. (1989). Evaluation of three circadian rhythm questionnaires with suggestions for an improved measure of morningness. Journal of Applied Psychology, 74, 728-738.
  • Sousa, I. C., Araujo, J. F., & Azevedo, C. V. M. (2007). The effect of a sleep hygiene program on the sleep-wake cycle of Brazilian adolescent students. Sleep and Biological Rhythms, 5, 251-258.
  • Tarokh, L., Carskadon, M. A., & Achermann, P. (2012). Dissipation of sleep pressure is stable across adolescence. Neuroscience, 216, 167–177.
  • Thorleifsdottir, B., Björnsson, J. K., Benediktsdottir, B., Gislason, T., & Kristbjarnarson, H. (2002). Sleep and sleep habits from childhood to young adulthood over a 10-year period. Journal of Psychosomatic Research, 53, 529–537.
  • Thorn, L., Hucklebridge, F., Esgate, A., Evans, P., & Clow, A. (2004). The effect of dawn simulation on the cortisol response to awakening in healthy participants. Psychoneuroendocrinology, 29, 925–930.
  • Tsai, L. L., & Li, S. P. (2004). Sleep education in college: a preliminary study. Perceptual & Motor Skills, 99, 837-848.
  • Vo, O. T., LeChasseur, K., Wolfson, A., & Marco, C. (2003). Sleepy pre-teens: second pilot of Sleep-Smart Program in 7th graders. Sleep, 26, A411.
  • Vollmer, C., Michel, U., & Randler, C. (2012). Outdoor light at night (LAN) is correlated with eveningness in adolescents. Chronobiology International, 29, 502–508.
  • Wahlstrom, K. (2002). Accomodating the sleep patterns of adolescents within current educational structures: an uncharted path. In Carskadon, M. A. (Ed.), Adolescent sleep patterns. Biological, social, and psychological influences (pp. 172–197). Cambridge, Cambridge University Press.
  • Wittmann, M., Dinich, J., Merrow, M., & Roenneberg, T. (2006). Social jetlag: misalignment of biological and social time. Chronobiology International, 23, 497–509.
Year 2014, , 12 - 23, 01.03.2014
https://doi.org/10.20876/ijobed.66052

Abstract

References

  • Adachi, Y., Sato, C., Kunitsuka, K., Hayama, J., & Doi, Y. (2008). A brief behavior therapy administered by correspondence improves sleep and sleep-related behavior in poor sleepers. Sleep and Biological Rhythms, 6, 16–21.
  • Adan, A., Fabbri, M., Natale, V., & Prat, G. (2006). Sleep Beliefs Scale (SBS) and circadian typology. Journal of Sleep Research, 15, 125–132.
  • Arendt, J. (2006). Melatonin and human rhythms. Chronobiology International, 23, 21–37.
  • Ausubel, D.P. (1968). Educational Psychology: A Cognitive View. New York: Holt, Rinehart & Winston.
  • Azevedo, C.V.M., Sousa, I., Ketema, P., McLeish, M. Y., Mondéjar, M. T., Sarabia, J. A., Rol, M. A., & Madrid, J. A. (2008). Teaching Chronobiology and sleep habits in school and University. Mind, Brain and Education, 2, 34-47.
  • Brown, F. C., Buboltz, W. C., & Soper, B. (2006). Development and evaluation of the sleep treatment and education program for students (STEPS). Journal of American College Health, 54, 231-237.
  • Buckhalt, J. A., El-Sheikh, M., & Wolfson, A. R. (2009). Children's sleep and school psychology practice. School Psychology Quarterly, 24, 60–69.
  • Cain, N., Gradisar, M., & Moseley, L. M. (2011). A motivational school-based intervention for adolescent sleep problems. Sleep Medicine, 12, 246–251.
  • Carskadon, M. A., Harvey, K., Duke, P., Andres, T. F., Litt, I. F., & Dement, W.C. (1980). Pubertal changes in daytime sleepiness. Sleep, 2, 453-460.
  • Carskadon, M. A. (1990). Patterns of sleep and sleepiness in adolescents. Pediatrician, 17, 5–12.
  • Carskadon, M. A., Wolfson, A. R., Acebo, C., Tzischinsky, O., & Seifer, R. (1998). Adolescent sleep patterns, circadian timing, and sleepiness at a transition to early school days. Sleep, 21, 871–881.
  • Carskadon, M. A. (2004). Sleep deprivation: health consequences and societal impact. Medical Clinics of North America, 88, 767–776.
  • Carskadon, M. A. (2011). Sleep in adolescents: The perfect storm. Pediatric Clinics of North America, 58, 637– 647.
  • Connell, J. P., & Wellborn, J. G. (1991). Competence, autonomy, and relatedness: A motivational analysis of self-system processes. In M. R. Gunnar & L. A. Sroufe (Eds.), Self processes and development. The Minnesota symposium on child psychology. (pp. 43–77). Hillsdale, NJ : Lawrence Erlbaum Associates, Inc.
  • Crowley, S. J., Acebo, C., & Carskadon, M. A. (2007). Sleep, circadian rhythms, and delayed phase in adolescence. Sleep Medicine, 8, 602–612.
  • Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self-determination in human behavior. New York: Plenum Press.
  • Deci, E. L., & Ryan, R. M. (1991). A motivational approach to self: Integration in personality. In R. Dienstbier (Ed.), Nebraska Symposium on Motivation: Vol. 38: Perspectives on Motivation (pp.237-288). Lincoln, NE.: University of Nebraska Press.
  • Díaz-Morales, J. F., Prieto, P. D., Barreno, C. E., Mateo, J. C., & Randler, C. (2011). Sleep beliefs and chronotype among adolescents: the effect of a sleep education program. Biological Rhythm Research, 43, 397-412.
  • Digdon, N. (2010). Circadian preference and college students’ beliefs about sleep education. Chronobiology International, 27, 297-317.
  • Escribano, C., Díaz-Morales, J. F., Delgado, P., & Collado, M. J. (2012). Morningness/eveningness and school performance among Spanish adolescents: Further evidence. Learning and Individual Differences, 22, 409-413.
  • Fromm, E., Horlebein, C., Meergans, A., Niesner, M., & Randler, C. (2011). Evaluation of a wake-up light in children and adolescents. Biological Rhythm Research, 42, 417–425.
  • Gallasch, J. (2007). Relationships between sleep knowledge, sleep practice and sleep quality. Sleep and Biological Rhythms, 5, 63-73.
  • Giannotti, F., Cortesi, F., Sebastiani, T., & Ottaviano, S. (2002). Circadian preference, sleep and daytime behavior in adolescence. Journal of Sleep Research, 11, 191–199.
  • Giménez, MC., Hessels, M., van de Werken, M., Vries, B. de, Beersma, D. G. M., & Gordijn, M. C. M. (2010). Effects of artificial dawn on subjective ratings of sleep inertia and dim light melatonin onset. Chronobiology International, 27, 1219–1241.
  • Grolnick, W. S., & Ryan, R. M. (1987). Autonomy in children’s learning: An experimental and individual difference investigation. Journal of Personality and Social Psychology, 52, 890-898.
  • Hagenauer, M. H., Perryman, J., Lee, T. M., & Carskadon, M. A. (2009). Adolescent changes in the homeostatic and circadian regulation of sleep. Developmental Neuroscience, 31, 276–284.
  • Hansen, M., Janssen, I., Schiff, A., Zee, P. C., & Dubocovich ML (2005). The Impact of School Daily Schedule on Adolescent Sleep. Pediatrics, 115, 1555–1561.
  • Kaiser, F. G., Roczen, N., & Bogner, F. X. (2008). Competence formation in environmental education: advancing ecology-specific rather than general abilities. Umweltpsychologie, 12, 56-70.
  • Kanerva, N., Kronholm, E., Partonen, T., Ovaskainen, M. L., Kaartinen, N. E., Konttinen, H., Broms, U., & Männistö, S. (2012). Tendency toward eveningness is associated with unhealthy dietary habits. Chronobiology International, 29, 920-927.
  • Klein, J. (2004). Planning middle school schedules for improved attention and achievement. Scandinavian Journal of Educational Research, 48, 441–450.
  • Kryger, M. H., Roth, T., & Dement, W. (2000). Principles and practice of sleep medicine. 3rd ed. Philadelphia (PA): WB Saunders.
  • LeBourgeois, M. K., Giannotti, F., Cortesi, F., Wolfson, A. R., & Harsh, J. (2005). The relationship between reported sleep quality and sleep hygiene in Italian and American adolescents. Pediatrics, 115, 257-265.
  • Lou, V., Abrami, P. C., Spence, J. C., Poulsen, C., Chambers, B., & d’Apollonia, S. (1996). Within-class grouping: a meta-analysis. Review of Educational Research, 66, 423-458
  • Moseley, L., Psyc, M., & Gradisar, M. (2009). Evaluation of a School-Based Intervention for Adolescent Sleep Problems. Sleep, 32, 334-341.
  • Noland, H., Price, J. H., Dake, J., & Telljohann, S. K. (2009). Adolescents’ sleep behaviors and percep-tions of sleep. Journal of School Health, 79, 224–230.
  • Randler, C. (2008). Differences in sleep and circadian preference between eastern and western German adolescents. Chronobiology International, 25, 565-575.
  • Randler, C., & Frech, D. (2006). Correlation between morningness – eveningness and final school leaving exams. Biological Rhythm Research, 37, 233–239.
  • Randler, C., & Frech, D. (2009). Young people’s time-of-day preferences affect their school performance. Journal of Youth Studies, 12, 651-665.
  • Randler, C., Bilger, S., & Díaz–Morales, J. F. (2009). Association between sleep, chronotype, parental monitoring and pubertal development in German adolescents. The Journal of Psychology, 143, 509-520.
  • Roenneberg, T., Kuehnle, T., Pramstaller, P., Ricken, J., Havel, M., Guth, A., & Merrow, M. (2004). A marker for the end of adolescence. Current Biology, 14, 1038-R1039.
  • Rossi, C. M., Campbell, A. L., Vo, O. T., Marco, C. A., & Wolfson, A. R. (2002). Middle school sleep-smart program: a pilot evaluation. Sleep, 25, A279.
  • Ryan, R. M. (2012). The Oxford Handbook on Human Motivation. Oxford University Press: Oxford.
  • Ryan, R. M., & Deci, E. L. (2000). Self-Determination Theory and the Facilitation of Intrinsic Motivation, Social Development, and Well-Being. American Psychologist, 55, 68-78.
  • Ryan, R. M., & Deci, E. L. (2002). An overview of self-determination theory. In E. L. Deci & R. M. Ryan (Eds.), Handbook of self-determination research (pp. 3-33). Rochester, NY: University of Rochester Press.
  • Schaal, S & Bogner, F (2005). Human visual perception - learning at workstations. Journal of Biological Education, 40, 32-37.
  • Smith, C. S., Reilly, T. C., & Midkiff, K. (1989). Evaluation of three circadian rhythm questionnaires with suggestions for an improved measure of morningness. Journal of Applied Psychology, 74, 728-738.
  • Sousa, I. C., Araujo, J. F., & Azevedo, C. V. M. (2007). The effect of a sleep hygiene program on the sleep-wake cycle of Brazilian adolescent students. Sleep and Biological Rhythms, 5, 251-258.
  • Tarokh, L., Carskadon, M. A., & Achermann, P. (2012). Dissipation of sleep pressure is stable across adolescence. Neuroscience, 216, 167–177.
  • Thorleifsdottir, B., Björnsson, J. K., Benediktsdottir, B., Gislason, T., & Kristbjarnarson, H. (2002). Sleep and sleep habits from childhood to young adulthood over a 10-year period. Journal of Psychosomatic Research, 53, 529–537.
  • Thorn, L., Hucklebridge, F., Esgate, A., Evans, P., & Clow, A. (2004). The effect of dawn simulation on the cortisol response to awakening in healthy participants. Psychoneuroendocrinology, 29, 925–930.
  • Tsai, L. L., & Li, S. P. (2004). Sleep education in college: a preliminary study. Perceptual & Motor Skills, 99, 837-848.
  • Vo, O. T., LeChasseur, K., Wolfson, A., & Marco, C. (2003). Sleepy pre-teens: second pilot of Sleep-Smart Program in 7th graders. Sleep, 26, A411.
  • Vollmer, C., Michel, U., & Randler, C. (2012). Outdoor light at night (LAN) is correlated with eveningness in adolescents. Chronobiology International, 29, 502–508.
  • Wahlstrom, K. (2002). Accomodating the sleep patterns of adolescents within current educational structures: an uncharted path. In Carskadon, M. A. (Ed.), Adolescent sleep patterns. Biological, social, and psychological influences (pp. 172–197). Cambridge, Cambridge University Press.
  • Wittmann, M., Dinich, J., Merrow, M., & Roenneberg, T. (2006). Social jetlag: misalignment of biological and social time. Chronobiology International, 23, 497–509.
There are 55 citations in total.

Details

Primary Language English
Journal Section Articles
Authors

Christian Vollmer This is me

Judith Hammer This is me

Christian Keller This is me

Anna Karina Maxand This is me

Juan Francisco Díazmorales This is me

Christoph Randler This is me

Publication Date March 1, 2014
Published in Issue Year 2014

Cite

APA Vollmer, C., Hammer, J., Keller, C., Maxand, A. K., et al. (2014). Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory. International Journal Of Biology Education, 3(1b), 12-23. https://doi.org/10.20876/ijobed.66052
AMA Vollmer C, Hammer J, Keller C, Maxand AK, Díazmorales JF, Randler C. Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory. International Journal Of Biology Education. March 2014;3(1b):12-23. doi:10.20876/ijobed.66052
Chicago Vollmer, Christian, Judith Hammer, Christian Keller, Anna Karina Maxand, Juan Francisco Díazmorales, and Christoph Randler. “Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory”. International Journal Of Biology Education 3, no. 1b (March 2014): 12-23. https://doi.org/10.20876/ijobed.66052.
EndNote Vollmer C, Hammer J, Keller C, Maxand AK, Díazmorales JF, Randler C (March 1, 2014) Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory. International Journal Of Biology Education 3 1b 12–23.
IEEE C. Vollmer, J. Hammer, C. Keller, A. K. Maxand, J. F. Díazmorales, and C. Randler, “Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory”, International Journal Of Biology Education, vol. 3, no. 1b, pp. 12–23, 2014, doi: 10.20876/ijobed.66052.
ISNAD Vollmer, Christian et al. “Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory”. International Journal Of Biology Education 3/1b (March 2014), 12-23. https://doi.org/10.20876/ijobed.66052.
JAMA Vollmer C, Hammer J, Keller C, Maxand AK, Díazmorales JF, Randler C. Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory. International Journal Of Biology Education. 2014;3:12–23.
MLA Vollmer, Christian et al. “Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory”. International Journal Of Biology Education, vol. 3, no. 1b, 2014, pp. 12-23, doi:10.20876/ijobed.66052.
Vancouver Vollmer C, Hammer J, Keller C, Maxand AK, Díazmorales JF, Randler C. Development And Evaluation of A Sleep Education Program in Middle School Pupils Based on Self-Determination Theory. International Journal Of Biology Education. 2014;3(1b):12-23.

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