. Author manuscript; available in PMC: 2021 Jun 1.

Published in final edited form as: J Youth Adolesc. 2020 Apr 25;49(6):1162–1178. doi: 10.1007/s10964-020-01237-7

Table B3.

Item discriminations and difficulties from Item Response Theory model

Item	Discrimination (SE)	Difficulty (SE)
1. Join club	1 (0)	0.20 (.16)
2. Try new food	0.95 (.27)	−2.17 (.52)
3. Take hard class	1.17 (.25)	−0.66 (.18)
4. Try new hair/trend	1.27 (.29)	−0.49 (.16)
5. Go to social event	1.37 (.28)	0.10 (.13)
6. Share secret	1.91 (.41)	−0.68 (.14)
7. Stand up for beliefs	1.70 (.4)	−1.60 (.25)
8. Initiate friendship	1.62 (.34)	−0.17 (.12)
9. Try new sport	0.87 (.24)	1.41 (.36)
10. Join new group	2.60 (.6)	−0.38 (.11)

Note. The item discrimination for the first item was constrained to 1 for model identification; italicized items are not statistically significant (p > .05); all other items are significant atp < .01.