Table 1.

Estimates of reliability and comparison of Cronbach’s alpha coefficients.

Variable	Spain	Portugal	Total Sample	Cronbach’s Alpha	Number of Items
SDQ	0.67	0.63	0.64	0.16	25
TeiQue-ASF	0.85	0.85	0.86	0.56	30
CAMM	0.85	0.76	0.82	0.0001	10
CERQ-Catastrophizing	0.73	0.78	0.75	0.04	4

Note. SDQ: total score on the Strengths and Difficulties Questionnaire; TeiQue-ASF: total score on Trait Emotional Intelligence Questionnaire-Adolescent Short Form; CAMM: total score on Children´s Acceptance and Mindfulness Measure; CERQ-Catastrophizing: Catastrophizing subscale of the Cognitive Emotion Regulation Questionnaire.