Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version

Gonçalves, Francine Guimarães; Heldt, Elizeth; Peixoto, Bianca Nascimento; Rodrigues, Gabriela Adamatti; Filipetto, Marcelly; Guimarães, Luciano Santos Pinto

doi:10.1186/s41155-016-0019-7

Psicologia: Reflexão e Crítica

Psychology: Research and Review

Table 3 Generalized Partial Credit Model (GPCM) of items in the bully scale of the Brazilian Portuguese version of the Olweus Bully/Victim Questionnaire (QBO), assuming variable discriminating power across items

From: Construct validity and reliability of Olweus Bully/Victim Questionnaire – Brazilian version

Item		Severity of response category		Discrimination	Reliability^c
Item		1 to 2^a	2 to 3^a	Discrimination	Reliability^c
22	I forced someone to hit/offend another classmate	36.4	37.5	3.1	0.86
15	I followed someone inside or outside the school	36.2	37.1	2.45	0.86
3	I threatened someone	33.3	37	2.43	0.85
4	I forced somebody to give me their money or belongings^b	38	36.4	2.34	0.86
10	I humiliated somebody because of their sexual preference or mannerism^b	37.5	37.3	2.24	0.86
13	I made nicknames for others that they didn’t like	31.2	35.7	2.24	0.86
8	I insulted someone because of their skin color or race	36.4	38.4	2.2	0.86
9	I insulted someone because of a physical characteristic	34.2	36.6	2.18	0.86
14	I cornered or pushed someone against a wall^b	36.6	36.4	2.11	0.86
20	I said bad things about someone or their family	35.2	36.7	2.08	0.86
19	I falsely accused someone of taking the belongings of classmates	36	39.4	1.97	0.88
12	I laughed or pointed at someone	31.9	36.3	1.94	0.86
21	I tried to make people dislike someone	36.2	38.5	1.84	0.86
16	I sexually harassed someone^b	39.2	37.1	1.76	0.86
11	I made fun of someone because of their accent	35.8	37	1.66	0.86
2	I pulled someone’s hair or scratched them	34.1	38.3	1.58	0.86
17	I didn’t let someone join a group of classmates	34.9	37.1	1.57	0.86
1	I hit, kicked, or pushed someone	30.8	36.9	1.52	0.86
5	I snitched money or things from others^b	41.4	36.4	1.32	0.86
7	I yelled at someone	28.1	34.3	1.32	0.86
18	I completely ignored someone	34.2	37.6	1.12	0.86
23	I used the Internet or cell phone to harm/offend a classmate^b	40.5	37.7	0.96	0.86
6	I damaged other people’s belongings	38	38.1	0.82	0.86

^aValues correspond to the intersection between response categories
^bItems with a high degree of intersection between categories 1 and 2
^cCronbach’s α coefficient excluding each item

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