Validation of the Croatian version of the PAQ-A questionnaire for the evaluation of physical activity of adolescents

Cilj ovog diplomskoga rada bio je utvrditi pouzdanost hrvatske inačice upitnika PAQ-A za procjenu razine tjelesne aktivnosti adolescenata te utvrditi razinu aktiviteta u adolescentskoj dobi. U istraživanju je sudjelovalo 123 učenika, 48 dječaka i 75 djevojaka prosječne starosti 16,57 godina (SD=1,56) jedne srednje škole u ruralnoj sredini. Za procjenu razine tjelesne aktivnosti korišten je Physical Activity Questionnaire for Adolescents (PAQ-A). Izračunati su osnovni deskriptivni parametri (aritmetička sredina, standardna devijacija i modalna vrijednost, te minimalni i maksimalni rezultat) u svakoj varijabli u prvom i drugom mjerenju. Za utvrđivanje pouzdanosti upitnika korištena je test-retest metoda t-testom za zavisne uzorke s razmakom od sedam dana između anketiranja. Za utvrđivanje spolnih razlika korišten je t-test za nezavisne uzorke, a za analizu razlika s obzirom na dob ispitanika korištena je univarijatna analiza varijance (ANOVA). Postignuta je zadovoljavajuća razina pouzdanosti jer nema razlike između dva mjerenja (t=0,32, p= 0,75) te time rezultati potvrđuju primjenu upitnika u budućim istraživanjima. Spolne razlike nisu značajne. Najviša razina aktiviteta postignuta je u čestici Aktivnost tijekom Tjelesne i zdravstvene kulture u korist dječaka.The aim of this graduate thesis was to establish the reliability of Croatian version of the questionnaire PAQ-A for assessing the level of physical activity of adolescents and to determine the level of activity in the adolescent age. The study involved 123 students, 48 boys and 75 girls of average age 16.57 years (SD = 1.56) of a secondary school in the rural environment. Physical Activity Questionnaire for Adolescents (PAQ-A) was used to assess the level of physical activity. The basic descriptive parameters are calculated (arithmetic mean, standard deviation and modal value, minimum and maximum score) in every variable in the first and the second measurement. In order to establish the reliability of the questionnaire, a test-retest method was used for t-test for dependent samples with a gap of seven days between the surveys. For the purpose of determining sex differences, the t-test for independent samples was used, and the ANOVA variance was used to analyze differences in age. A satisfactory level of reliability has been achieved because there is no difference between the two measurements (t = 0.32, p = 0.75) and thus the results confirm the application of the questionnaire in future research. Gender differences are no significant. The highest level of activity was achieved in the Activity part during the Physical Education in favor of boys