Bells Test Revised The Bells Test revised (Biancardi & Stoppa, 1997) is a test for the evaluation of sustained attention in children. The test is an adaptation of Gauthiers's Bell Test used to assess neglect in adults. The Bells Test has been modified in order to make it suitable to research in developmental age. Items are organized in four different pages, which include each 35 bells. Speed and Accuracy in selecting the target stimuli (bells) are assessed. The Speed score refers to the number of bells found by the child in the first 30 seconds of the task, while the Accuracy score refers to the total number of bells found during the whole task (120 seconds).

Five Facet Mindfulness Questionnaire The FFMQ is a 39-item questionnaire that measures five facets of mindfulness (Baer et al., 2006): observing (8 items, e.g., I notice the smells and aromas of things), describing (8 items, e.g., I'm good at finding the words to describe my feelings), acting with awareness (8 items; e.g., I am easily distracted), nonjudging (8 items, e.g., I criticize myself for having irrational or inappropriate emotions), and nonreactivity (7 items; e.g., I watch my feelings without getting lost in them). Participants were asked to rate the degree to which each statement is true for them. Items were scored on a 5-point Likert-type scale ranging from 1 (never or very rarely true) to 5 (very often or always true). Facet scores were computed by summing the scores on the individual items. Facet scores range from 8 to 40 (except for the nonreactivity facet, which ranges from 7 to 35), with higher scores indicating more mindfulness.

Multidimensional Anxiety Scale for Children The Multidimensional Anxiety Scale for Children (MASC) is a 39-item, 4-point Likert self-report scale that robustly represents the factor structure of anxiety in children aged 8 to 18 years. MASC main and subfactors include (a) physical symptoms (tense/restless and somatic/autonomic), (b) harm avoidance (anxious coping and perfectionism), (c) social anxiety (humiliation/rejection and public performance fears), and (d) separation anxiety.

Alabama Parenting Questionnaire The APQ is a 42-item measure on which parents were asked to indicate the frequency with which they implemented a range of parenting practices on a 5-point scale, ranging from 1 (never) to 5 (always). The subfactors include: a) positive parenting, b) parental involvement, c) inconsistent discipline, d) corporal punishment.

Parenting Stress Index The PSI-SF is a 36- item questionnaire designed to measure stress in the parent-child system and identify those families most in need of follow-up services. The PSI-SF consists of three subscales: Parental Distress, Parent-Child Dysfunctional Interaction, and Difficult Child. Each subscale consists of 12 items rated from 1 (strongly disagree) to 5 (strongly agree). Subscale scores therefore range from 12 to 60, whereas the total score ranges from 36 to 180. High scores on the subscales and PSI-SF total score indicate greater levels of stress.