Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Krzysztof Ostaszewski.
Journal of Adolescence | 2014
Elana L. Habib; Marc A. Zimmerman; Krzysztof Ostaszewski
Extracurricular involvement creates an outlet for adolescents to gain skills and resources that assist them in overcoming certain risks. Resiliency theory is applied to study the promotive effects of extracurricular activity involvement as this may help Polish youth overcome risks for alcohol use. Our data include 2903, 13 and 14 year old Polish adolescents. We use regression analysis to test the main and interaction effects of extracurricular involvement after adjusting for demographics and social influences. Sex differences are examined within the resilience framework. We found protective effects of extracurricular involvement for males, but only a compensatory effect for females. Implications for future research and intervention are discussed.
American Journal of Community Psychology | 2006
Krzysztof Ostaszewski; Marc A. Zimmerman
Archive | 2009
Anna Borucka; Krzysztof Ostaszewski
Dziecko Krzywdzone. Teoria, badania, praktyka | 2012
Anna Borucka; Krzysztof Ostaszewski
Substance Use & Misuse | 2016
Agnieszka Pisarska; Andria B. Eisman; Krzysztof Ostaszewski; Marc A. Zimmerman
Archive | 2005
Agnieszka Pisarska; Krzysztof Ostaszewski; Anna Borucka; Katarzyna Okulicz-Kozaryn; Krzysztof Bobrowski
Archive | 2017
Krzysztof Ostaszewski; Agnieszka Pisarska; Moshe Israelashvili; John Romano
Przegląd Pedagogiczny | 2015
Agnieszka Pisarska; Krzysztof Ostaszewski
Archive | 2012
Agnieszka Pisarska; Krzysztof Bobrowski; Anna Borucka; Katarzyna Okulicz-Kozaryn; Krzysztof Ostaszewski; Joanna Raduj
Edukacja | 2012
Krzysztof Bobrowski; Agnieszka Pisarska; Krzysztof Ostaszewski; Katarzyna Okulicz-Kozaryn
