Konrad S. Jankowski


Dr hab. Konrad S. Jankowski

Zainteresowania Chronopsychologia, Psychometria, Różnice Indywidualne

Email konrad.jankowski@psych.uw.edu.pl

Profile Academia GoogleScholar ResearchGate

Dyżury online



Jankowski KS, Jurzysta K. (2024). Chronotype and intellectual performance in the morning: the role of alertness, cortisol, and task stress. Biological Rhythm Research, 55, 278-292. https://doi.org/10.1080/09291016.2024.2339182  PDF

Jankowski KS, Zajenkowski M, Górniak J. (2024). Chronotype in relation to free and total testosterone in men. Chronobiology International, 41(6), 924–928. https://doi.org/10.1080/07420528.2024.2360719  PDF

Sobol, M., Błachnio, A., Meisner, M., Szyszkowska, J., Jankowski, K.S. (2024). Sleep, circadian activity patterns and postpartum depression: A systematic review and meta-analysis of actigraphy studies. Journal of Sleep Research. https://doi.org/10.1111/jsr.14116  PDF

Sobol, M., Błachnio, A., Meisner, M., Wdowiak, A., Wdowiak, N., Gorbaniuk, O., Jankowski, K.S. (2024). Circadian rhythm and sleep disruptions in relation to prenatal stress and depression symptoms. Chronobiology International, 41, 294-303. https://doi.org/10.1080/07420528.2024.2303985  PDF

Zajenkowski M, Gorgol J, Jankowski KS. (2024). Chronotype Predicts University Students’ Expected and Actual Grades above Conscientiousness and Intelligence. Personality and Individual Differences, 228, 112733. https://doi.org/10.1016/j.paid.2024.112733  PDF


Díaz-Morales JF, Escribano C, Puig-Navarro Y, Jankowski KS. (2023). Factors Underpinning the Shift to Eveningness during Early Adolescence: Pubertal Development and Family Conflicts. Journal of Youth and Adolescence, 52, 561-569. https://doi.org/10.1007/s10964-022-01708-z   PDF

Jankowski KS, Díaz-Morales JF, Vollmer C. (2023). Chronotype, Time of Day, and Performance on Intelligence Tests in the School Setting. Journal of Intelligence, 11, 13. https://doi.org/10.3390/jintelligence11010013   PDF

Olivera‑Figueroa LA, Muro A, Feliu‑Soler A, Chishima Y, Jankowski KS, Allen MT, Servatius RJ, Unger A, Papastamatelou J. (2023). The role of time perspective and mindfulness on life satisfaction in the United States of America, Spain, Poland and Japan: A cross-cultural study. Current Psychology, 42, 17682-17699. https://doi.org/10.1007/s12144-022-02756-1   PDF

Zajenkowski, M., Gignac, G., Rogoza, R., Górniak, J., Maciantowicz, O., Leniarska, M., Jonason, P., Jankowski, K.S. (2023). Ego-Boosting Hormone: Self-Reported and Blood-Based Testosterone Are Associated with Higher Narcissism. Psychological Science, 34. 1024-1032. https://doi.org/10.1177/09567976231184886  PDF


Gorgol J, Stolarski M, Jankowski KS. (2022). The moderating role of personality traits in the associations between seasonal fluctuations in chronotype and depressive symptoms. Chronobiology International, 39(8), 1078-1086. https://doi.org/10.1080/07420528.2022.2067000   PDF

Hasan MM, Jankowski KS, Khan MHA. (2022). Morningness-eveningness preference and shift in chronotype during COVID-19 as predictors of mood and well-being in university students. Personality and Individual Differences, 191, 111581. https://doi.org/10.1016/j.paid.2022.111581   PDF

Kobylińska D, Zajenkowski M, Lewczuk K, Jankowski KS, Marchlewska M. (2022). The Mediational Role of Emotion Regulation in the Relationship Between Personality and Subjective Well-Being. Current Psychology, 41, 4098-4111. https://doi.org/10.1007/s12144-020-00861-7   PDF

Linke M, Jankowski KS. (2022). Religiosity and the Spread of COVID‑19: A Multinational Comparison. Journal of Religion and Health, 61, 1641-1656. https://doi.org/10.1007/s10943-022-01521-9   PDF

Litwic-Kaminska, K., Jankowski, K.S. (2022). Self-reported chronotype and objective sleep timing in university student athletes and non-athletes. Sleep Science, 15(3), 351-355. doi: 10.5935/1984-0063.20220062  PDF

Mokros Ł, Witusik A, Szydłowska D, Jankowski KS, Kuna P, Pietras T. (2022). Mental health indices may fully mediate the relationship between morningness-eveningness and disease control among adult asthma patients. Journal of Asthma, 22(10), 1923-1932. https://doi.org/10.1080/02770903.2021.1989463  PDF

Senyk O, Jankowski KS, Cholii S. (2022). Ukrainian versions of the Composite Scale of Morningness and Munich ChronoType Questionnaire. Biological Rhythm Research, 53(6), 878-896. https://doi.org/10.1080/09291016.2020.1788807   PDF

Sobol M, Zajenkowski M, Jankowski KS. (2022). Religious Fundamentalism, Delusions, and Conspiracy Beliefs Related to the COVID-19 Pandemic. International Journal of Environmental Research and Public Health, 19, 9597. https://doi.org/10.3390/ijerph19159597   PDF

Vollmer C, Jankowski KS. (2022). COVID-19-lockdown delayed sleep timing in Tyrolean teachers. Chronobiology International, 39, 1601-1610. https://doi.org/10.1080/07420528.2022.2138424   PDF


Haldar, P., Debnath, S., Adan, A., Jankowski, K.S., Chattopadhyay, D., Maity, S.G., Moitra, S., Lacy, P., Moitra, S. (2021). Role of Living Conditions and Socioenvironmental Factors on Chronotype in Adolescents. Adolescents1, 95-107. https://doi.org/10.3390/adolescents1020008   PDF

Jankowski, K. S. (2021). Sprawność intelektualna osób o odmiennych chronotypach. W: M. Zajenkowski (red.), Inteligencja w codziennym życiu (s. 259–273). Warszawa: Wydawnictwo Liberi Libri. https://doi.org/10.47943/lib.9788363487515.rozdzial10   PDF

Kossowski, B., Droździel, S., Rode, K., Michałowski, J., Jankowski, K.S., Wypych, M., Wolska, A., Marchewka, A. (2021). The influence of light exposure and chronotype on working memory in humans. Acta Neurobiol Exp, 81, 111-120. https://doi.org/10.21307/ane-2021-011   PDF

Linke, M., Jankowski, K. S. (2021). Chronotype in individuals with schizophrenia: A meta-analysis. Schizophrenia Research, 235, 74-79. https://doi.org/10.1016/j.schres.2021.07.020  PDF

Linke-Jankowska, M., Jankowski, K. S. (2021). Social and physical anhedonia in relation to grandiose and vulnerable narcissism. Current Issues in Personality Psychology, 9(1), 46–52. https://doi.org/10.5114/cipp.2021.104595  PDF

Randler C, Adan A, Antofie M-M, Arrona-Palacios A, Candido M, Boeve-de Pauw J, Chandrakar P, Demirhan E, Detsis V, Di Milia L, Fančovičová J, Gericke N, Haldar P, Heidari Z, Jankowski KS, Lehto JE, Lundell-Creagh R, Medina-Jerez W, Meule A, L. Milfont T, Orgilés M, Morales A, Natale V, Ortiz-Jiménez X, Pande B, Partonen T, Pati AK, Prokop P, Rahafar A, Scheuch M, Sahu S, Tomažič I, Tonetti L, Vallejo Medina P, van Petegem P, Vargas A, Vollmer C. Animal Welfare Attitudes: Effects of Gender and Diet in University Samples from 22 Countries. Animals. 2021; 11(7):1893. https://doi.org/10.3390/ani11071893   PDF

Zielińska, A., Stolarski, M., Jankowski, K.S. (2021). Moral foundations in chronotypes: morningness predicts conservative morality. Chronobiology International. https://doi.org/10.1080/07420528.2021.1909611   PDF


Galasso L, Montaruli A, Jankowski KS, Bruno E, Castelli L, Mulè A, Chiorazzo M, Ricceri A, Erzegovesi S, Caumo A, Roveda E, Esposito F. (2020). Binge Eating Disorder: What is the Role of Physical Activity Associated with Dietary and Psychological Treatment? Nutrients, 12, 3622. doi:10.3390/nu12123622   PDF

Jankowski KS, Linke M. (2020). Angry night birds: Emotionality, activity and sociability temperament in adolescent chronotypes. Chronobiology International, 37(5), 652-659. doi:10.1080/07420528.2020.1754844   PDF

Jankowski KS, Zajenkowski M, Stolarski M. (2020). What are the optimal levels of time perspectives? Deviation from the balanced time perspective-revisited (DBTP-r). Psychologica Belgica, 60(1), 164–183. https://doi.org/10.5334/pb.487   PDF

Stolarski, M., Zajenkowski, M., Jankowski, K.S., Szymaniak, K. (2020). Deviation from the Balanced Time Perspective: A Systematic Review of Empirical Relationships with Psychological Variables. Personality and Individual Differences, 156, 109772. https://doi.org/10.1016/j.paid.2019.109772   PDF


Díaz-Morales, J.F., Jankowski, K.S., Prokop P., Castellana, I., Linke M., Randler C., Rahafar A. (2019). Sleep timing is linked to sociosexuality: Evidence from German, Polish, Slovak, and Spanish females. Time & Society, 28 (3), 1272-1287. doi: 10.1177/0961463X18757390   PDF

Jankowski, K.S., Fajkowska, M., Domaradzka, E., Wytykowska, A. (2019). Chronotype, social jetlag and sleep loss in relation to sex steroids. Psychoneuroendocrinology, 108, 87-93. doi: 10.1016/j.psyneuen.2019.05.027  PDF

Linke, M., Jankowski, K.S., Wichniak, A., Jarema, M., Wykes T. (2019). Effects of Cognitive Remediation Therapy versus other interventions on cognitive functioning in schizophrenia inpatients. Neuropsychological Rehabilitation, 29(3), 477-488. doi: 10.1080/09602011.2017.1317641   PDF

Sławińska, M., Stolarski, M., Jankowski, K.S. (2019). Effects of chronotype and time of day on mood responses to crossfit training. Chronobiology International, 36(2), 237-249. doi: 10.1080/07420528.2018.1531016   PDF

Zajenkowski M, Jankowski KS, Stolarski M. (2019). Why do evening people consider themselves more intelligent than morning individuals? The role of big five, narcissism, and objective cognitive ability. Chronobiology International, 36(12), 1741-1751. doi: 10.1080/07420528.2019.1680559  PDF


Jocz, P., Stolarski, M. Jankowski, K.S. (2018). Similarity in Chronotype and Preferred Time for Sex and Its Role in Relationship Quality and Sexual Satisfaction. Frontiers in Psychology, 9:443, doi: 10.3389/fpsyg.2018.00443   PDF

Kapusta, N.D., Jankowski, K.S., Wolf, V., Chéron-Le Guludec, M., Lopatka, M., Hammerer, C., Schnieder, A., Kealy, D., Ogrodniczuk, J.S., Blüml, V. (2018). Measuring the Capacity to Love: Development of the CTL-Inventory. Frontiers in Psychology, 9:1115. doi: 10.3389/fpsyg.2018.01115   PDF

Nowosielski, K., Jankowski, K.S., Kowalczyk, R., Kurpisz, J., Normantowicz-Zakrzewska, M., Krasowska, A. (2018). Sexual Self-Schema Scale for Women—Validation and Psychometric Properties of the Polish Version. Sexual Medicine, 6(2), 131-142. doi: 10.1016/j.esxm.2017.12.002   PDF

Pruszczak, D., Stolarski, M., Jankowski, K.S. (2018). Chronotype and time metaphors: morning-types conceive time as more friendly and less hostile. Biological Rhythm Research, 49, 431-441. doi: 10.1080/09291016.2017.1368215   PDF

Randler, C., Díaz-Morales, J.F., Jankowski, K.S. (2018). Synchrony in chronotype and social jetlag between dogs and humans across Europe. Time & Society, 27(2), 223-238. doi:10.1177/0961463X15596705   PDF


Jankowski, K.S. (2017). Actual versus preferred sleep times as a proxy of biological time for social jet lag. Chronobiology International, 34, 1175-1176. doi: 10.1080/07420528.2017.1356663   PDF

Jankowski, K.S. (2017). Social jet lag: Sleep-corrected formula. Chronobiology International, 34, 531-535. doi: 10.1080/07420528.2017.1299162   PDF

Jankowski, K.S. (2017). Morningness-eveningness and seasonality. Biological Rhythm Research, 48, 331-342. doi: 10.1080/09291016.2016.1263001  PDF

Jankowski, K.S., Dmitrzak-Weglarz, M. (2017). ARNTL, CLOCK, and PER3 polymorphisms – links with chronotype and affective dimensions. Chronobiology International, 34, 1105-1113.  PDF

Vollmer, C., Jankowski, K.S., Díaz-Morales, J.F., Itzek-Greulich, H., Wüst-Ackermann, P., Randler, C. (2017). Morningness-eveningness correlates with sleep time, quality, and hygiene in secondary school students – A multilevel analysis. Sleep Medicine, 30, 151-159.   PDF

Wichniak, A., Jankowski, K.S., Skalski, M., Skwarło-Sońta, K., Zawilska, J.B., Żarowski, M., Poradowska, E., Jernajczyk, W. (2017). Standardy leczenia zaburzeń rytmu okołodobowego snu i czuwania opracowane przez Polskie Towarzystwo Badań nad Snem i Sekcję Psychiatrii Biologicznej Polskiego Towarzystwa Psychiatrycznego. Część I. Fizjologia, metody oceny i oddziaływania terapeutyczne. Psychiatria Polska, 51, 793-814.   PDF

Wichniak, A., Jankowski, K.S., Skalski, M., Skwarło-Sońta, K., Zawilska, J.B., Żarowski, M., Poradowska, E., Jernajczyk, W. (2017). Standardy leczenia zaburzeń rytmu okołodobowego snu i czuwania Polskiego Towarzystwa Badań nad Snem i Sekcji Psychiatrii Biologicznej Polskiego Towarzystwa Psychiatrycznego. Część II. Diagnoza i leczenie. Psychiatria Polska, 51, 815-832.   PDF

Wichniak, A., Jankowski, K.S., Skalski, M., Skwarło-Sońta, K., Zawilska, J.B., Żarowski, M., Poradowska, E., Jernajczyk, W. (2017). Treatment guidelines for Circadian Rhythm Sleep-Wake Disorders of the Polish Sleep Research Society and the Section of Biological Psychiatry of the Polish Psychiatric Association. Part I. Physiology, assessment and therapeutic methods. Psychiatria Polska, 51, 793-814.   PDF

Wichniak, A., Jankowski, K.S., Skalski, M., Skwarło-Sońta, K., Zawilska, J.B., Żarowski, M., Poradowska, E., Jernajczyk, W. (2017). Treatment guidelines for Circadian Rhythm Sleep-Wake Disorders of the Polish Sleep Research Society and the Section of Biological Psychiatry of the Polish Psychiatric Association. Part II. Diagnosis and treatment. Psychiatria Polska, 51, 815-832.   PDF

Wytykowska, A., Fajkowska, M., Domaradzka, E., Jankowski, K.S. (2017). Construct validity of the Polish version of the reinforcement sensitivity theory-personality questionnaire. Personality and Individual Differences, 109, 172-180.   PDF


Jankowski, K.S. (2016). Charakterystyka psychometryczna polskiej wersji zrewidowanego Inwentarza Orientacji Socjoseksualnej (SOI-R). In A. Rynkiewicz, K.S. Jankowski, & W. Oniszczenko (Eds.), Wybrane metody i paradygmaty badawcze w psychologii. Warsaw: Scholar, pp.77–92.   PDF

Jankowski, K.S. (2016). Morningness-eveningness and depressive symptoms: Test on the components level with CES-D in Polish students. Journal of Affective Disorders, 196, 47-53.   PDF

Jankowski, K.S., Zajenkowski, M. (2016). The role of morningness and endurance in mood and attention during morning and evening hours. Journal of Individual Differences, 37, 73-80.   PDF

Jankowski, K.S., Zajenkowski, M., Stolarski, M., Styła, R., Zajenkowska, A., Jedrasik-Styła, M., Linke, M. (2016). Polish version of the Managing the Emotions of Others Scale (MEOS): Psychometric properties and validation. Psychological Reports, 118, 532-543.   PDF

Randler, C., Jankowski, K.S., Rahafar, A., Díaz-Morales, J.F. (2016). Sociosexuality, morningness-eveningness, and sleep duration. SAGE Open, 6, 1-8.   PDF

Stolarski, M., Jankowski, K.S., Matthews, G., Kawalerczyk, J. (2016). Wise “birds” follow their clock: The role of emotional intelligence and morningness-eveningness in diurnal regulation of mood. Chronobiology International, 33, 51-63.   PDF

Stolarski, M., Vowinckel, J., Jankowski, K.S., Zajenkowski, M. (2016). Mind the balance, be contented: Balanced time perspective mediates the relationship between mindfulness and life satisfaction. Personality and Individual Differences, 93, 27-31.   PDF


Díaz-Morales, J.F., Escribano, C., Jankowski, K.S. (2015). Chronotype and time-of-day effects on mood during school day. Chronobiology International, 32, 37-42.   PDF

Dobija, L., Jankowski, K.S. (2015). Reliability of the non-weightbearing inclinometric measurements of the ankle range of motion in older adults with orthopedic problems. Topics in Geriatric Rehabilitation, 31, 164-169.   PDF

Jankowski, K.S. (2015). Composite Scale of Morningness: psychometric properties, validity with Munich ChronoType Questionnaire and age/sex differences in Poland. European Psychiatry, 30, 166-171.   PDF

Jankowski, K.S. (2015). Is the shift in chronotype associated with an alteration in well-being? Biological Rhythm Research, 46, 237-248.   PDF

Linke, M., Jankowski, K.S., Ciołkiewicz A., Jędrasik-Styła, M., Parnowska, D., Gruszka, A., Denisiuk, M., Jarema, M., Wichniak, A. (2015). Age or age at onset? Which of them really matters for neuro and social cognition in schizophrenia. Psychiatry Research, 225, 197-201.   PDF

Stolarski, M., Jankowski, K.S. (2015). Morningness-eveningness and performance-based emotional intelligence. Biological Rhythm Research, 46, 417-423.   PDF

Zajenkowska, A., Jankowski, K.S. Mylonas, K., Rajchert, J. (2015). Coffee consumption and propensity to experience aggressive feelings in provoking and frustrating situations. Current Issues in Personality Psychology, 3, 105-111.   PDF

Zajenkowska, A., Zajenkowski, M., Jankowski, K.S. (2015). The relationship between mood experienced during an exam, proneness to frustration and neuroticism. Learning and Individual Differences, 37, 237-240.   PDF

Zajenkowski, M., Jankowski, K.S., Kołata, D. (2015). Let’s dance – feel better! Mood changes following dancing in different situations. European Journal of Sport Science, 15, 640-646.   PDF


Díaz-Morales, J.F., Escribano, C., Jankowski, K.S., Vollmer, C., Randler, C. (2014). Evening adolescents: the role of family relationships and pubertal development. Journal of Adolescence, 37, 425-432.   PDF

Jankowski, K.S. (2014). The role of temperament in the relationship between morningness-eveningness and mood. Chronobiology International, 31, 114-122.   PDF

Jankowski, K.S., Díaz-Morales, J.F., Randler, C. (2014). Chronotype, gender, and time for sex. Chronobiology International, 31, 911-916.   PDF

Jankowski, K.S., Díaz-Morales, J.F., Vollmer, C., Randler, C. (2014). Morningness-eveningness and sociosexuality: evening females are less restricted than morning ones. Personality and Individual Differences, 10, 13-17.   PDF

Jankowski, K.S., Vollmer, C., Linke, M., Randler C. (2014). Differences in sun time within the same time zone affect sleep-wake and social rhythms, but not morningness preference: Findings from a Polish-German comparison study. Time & Society, 23, 258-276.   PDF

Randler, C., Barrenstein, S., Vollmer, C., Díaz-Morales, J.F., Jankowski, K.S. (2014). Women would like their partners to be more synchronized with them in their sleep-wake rhythm. The Spanish Journal of Psychology, 17, E70.   PDF

Randler, C., Jankowski, K.S. (2014). Evidence for the validity of the Composite Scale of Morningness based on students from Germany and Poland – relationship with sleep wake and social schedules. Biological Rhythm Research, 45, 635-659.   PDF


Díaz-Morales, J.F., Jankowski, K.S., Vollmer, C., Randler, C. (2013). Morningness and life satisfaction: further evidence from Spain. Chronobiology International, 30, 1283-1285.   PDF

Jankowski, K.S. (2013). Morning types are less sensitive to pain than evening types all day long. European Journal of Pain, 17, 1068-1073.   PDF

Jankowski, K.S. (2013). Polish version of the reduced Morningness-Eveningness Questionnaire. Biological Rhythm Research, 44, 427-433.   PDF

Zajenkowska, A., Jankowski, K.S., Lawrence, C., Zajenkowski, M. (2013). Personality and individual differences in responses to aggression triggering events among prisoners and non-prisoners. Personality and Individual Differences, 55, 947-951.   PDF


Biernacki, M., Jankowski, K.S., Kowalczuk, K., Lewkowicz, R., Dereń, M. (2012). +GZ centrifugation and mood. Aviation, Space and Environmental Medicine, 83, 136-139.   PDF

Jankowski, K.S. (2012). Morningness/eveningness and satisfaction with life in a Polish sample. Chronobiology International, 29, 780-785.   PDF

Jankowski, K.S. (2012). Morningness-eveningness and temperament: The regulative theory of temperament perspective. Personality and Individual Differences, 53, 734-739.   PDF

Jankowski, K.S., Zajenkowski, M. (2012). Mood as a result of temperament profile: predictions from the Regulative Theory of Temperament. Personality and Individual Differences, 52, 559-562.   PDF


Jankowski, K.S. (2011). W rytmie nastroju. W: E. Goryńska, M. Ledzińska, M. Zajenkowski, (red.). Nastrój. Modele, geneza, funkcje (s.55-72). Warszawa: Wydawnictwo Uniwersytetu Warszawskiego.   PDF


Styła, R., Jankowski, K.S., Suszek, H. (2010). Skala niespójności Ja (SN-Ja). Studia Psychologiczne, 48, 31-43.   PDF


Jankowski, K.S., Zajenkowski, M. (2009). Znaczenie rytmów dobowych i różnic indywidualnych w zakresie uwagi człowieka w bezpieczeństwie transportu drogowego. Journal of KONES, 16(3), 141-147.   PDF

Jankowski, K.S., Zajenkowski, M. (2009). Ilościowe metody szacowania struktury temperamentu w ujęciu regulacyjnej teorii temperamentu. Psychologia-Etologia-Genetyka, 19, 55-70.   PDF

Jankowski, K.S., Zajenkowski, M. (2009). Metody szacowania rzetelności pomiaru testem. W: K. Fronczyk (red.). Psychometria – podstawowe zagadnienia. Vizja Press. 84-110.   PDF


Jankowski, K.S. (2008). Wielowymiarowy kwestionariusz do pomiaru różnic indywidualnych w zakresie zegara biologicznego. W: W. Ciarkowska, W. Oniszczenko (red.) Szkice z psychologii różnic indywidualnych. Scholar, 123-135.   PDF

Jankowski, K.S., Ciarkowska, W. (2008). Diurnal variation in energetic arousal, tense arousal and hedonic tone in extreme morning and evening types. Chronobiology International, 25, 577-595.   PDF


Jankowski, K.S. (2007). Dzienny rytm nastroju u osób różniących się chronotypem. Studia Psychologiczne, 45, 17-27.


Jankowski, K.S. (2006). Metody zwiększania niezawodności człowieka w systemach antropotechnicznych w okresach zwiększonej senności. Materiały Szkoły Niezawodności PAN, 34, 148-156.


Jankowski, K.S. (2004). Niektóre sposoby zmniejszania liczby wypadków motoryzacyjnych. Archiwum motoryzacji, 7(4), 477-492.