Theoretical foundations, clinical applicability and standardised instruments
The psychological development of a child or adolescent cannot be understood without the stable dimensions of individuality: emotional reactive style, affective intensity, threshold of tolerance for frustration, speed of adaptation, behavioural rhythmicity, need for control, and the way the person relates to themselves and to others. These traits form what the psychological literature distinguishes as temperament and, later, personality.

Temperament is the relatively stable configuration of psychobiological traits that shape a child’s reaction to stimulation, influencing emotional and adaptive style from the first months of life. It cannot be reduced to emotion or behaviour; it reflects an integrated system of reactivity and self-regulation, firmly anchored in the genetic substrate and in the neurophysiological organisation of the central nervous system.
Personality, by contrast, is a higher level of organisation of individuality, integrating — alongside the temperamental basis — cognitive acquisitions, self-representations, causal attribution style, values, motivations and internalised relational patterns. Emerging personality becomes visible in adolescence, when identity enters a process of consolidation and self-reflection, and affective and cognitive structures organise themselves into a relatively stable, coherent system of psychological functioning.
In applied psychological practice – clinical, educational or vocational – assessing these stable dimensions is indispensable to understanding how a child or adolescent responds to the demands of their environment, how they cope with frustration, how they regulate impulses, what kind of interactions they prefer and how they see themselves. It does not provide a diagnosis, but an explanatory and predictive framework for behaviour within the dynamics of development.
The clinical rationale for assessing temperament and personality
The value of these instruments is twofold: predictive and explanatory. Assessing temperament allows, for example, the identification of children with increased vulnerability to anxiety or to difficulties of self-regulation, without their necessarily showing a disorder. At the other pole, an adolescent’s emerging personality can explain why two people with the same academic difficulty respond differently: one through withdrawal and excessive self-criticism, the other through denial or externalisation.
In preschool children, temperamental traits can influence attachment style, behavioural profile at nursery, level of inhibition or reactivity to change. At school age they become predictors of learning style, tolerance of cognitive effort and capacity for social adaptation. In adolescents, where differences between individuals are far more evident, the emerging personality profile allows consistent hypotheses to be formed about coping mechanisms, the relationship with authority, the level of affective maturity or potential areas of inner conflict.
Standardised assessment of these dimensions therefore has high clinical value in drawing up a plan of psychological intervention (therapy, coaching, educational counselling), as well as in prevention, career guidance, selection and parental counselling.
Developmental stages and the assessment instruments available
At the practice, the assessment of temperament and personality is calibrated to the stages of development and to the child’s or adolescent’s capacity for introspection. The instruments used are psychometrically validated, adapted to age, and include both self-assessment and indirect assessment (through a parent or another significant informant).
In the preschool period (3–6 years), temperament is assessed exclusively through adult observation, using questionnaires completed by the parent, such as the CBQ (Child Behavior Questionnaire), which explores dimensions such as negative reactivity, capacity for concentration, adaptability and inhibitory control.
For younger school-age children (7–10 years), instruments such as the TMCQ (Temperament in Middle Childhood Questionnaire) are used, allowing parents to report finer traits of emotional and cognitive self-regulation, such as the intensity of positive and negative emotions, persistence in a task or the threshold of sensory reactivity.
In preadolescents (11–15 years), a two-dimensional assessment is introduced: the parent completes the indirect form of the EATQ (Early Adolescent Temperament Questionnaire), while the adolescent can answer directly, according to their level of introspection. This combination gives a complex picture in which any mismatch between self-perception and the adult’s perception of stable functional traits becomes visible.
In middle and late adolescence (15–19 years), the emphasis shifts from temperament to personality. Instruments such as the personal autonomy questionnaire (AP) are used, investigating motivational structure, the relationship with authority, the level of self-regulation and the degree of ownership over decisions. The structure of personality traits is explored through questionnaires validated within the five-factor model (e.g. CP5F – Five-Factor Personality Questionnaire, FFPI – Five-Factor Personality Inventory), including 360° assessment, that is, external reporting by a significant adult (informant).
A particular place is held by the explanatory style questionnaire, which assesses the causal patterns through which the adolescent interprets success, failure, personal responsibility or chance. It provides valuable information about stable cognitive style, with implications for motivation, resilience and predisposition to affective vulnerability (particularly of a depressive kind).
Framework of application and clinical interpretation
All instruments are administered at the practice, respecting the conditions of standardisation. Forms completed by parents or adolescents are scored and interpreted exclusively by a clinical psychologist, in an integrative, contextualised manner and without labelling. The data obtained are not used in isolation but corroborated with clinical observation, history and, where appropriate, other instruments (screening, cognitive, affective or adaptive).
The result is not a bare score but a complex functional profile, which can guide intervention, prevention, parental counselling or educational recommendations. For adolescents, these assessments offer important support for decisions about vocational profile, working style, and compatibility with organisational structures and types of activity.
Temperament and personality are not luxuries in psychological assessment – they are the foundation for understanding how a child or adolescent functions, reacts, adapts or avoids. They are not causes but conditions of functioning; they do not determine, but they structure. In psychological practice, access to these dimensions through validated instruments, rigorously applied, becomes a form of professional hygiene and an act of clinical responsibility.
📘 Knowing a child’s temperament does not change the child, but it changes how the adults around them relate to them. And in adolescence, understanding a personality in formation means opening the way to autonomy, not to conformity.
How it works in practice
Psychometric instruments are not used in isolation. At the practice, a test forms part of a complete psychological assessment: clinical interview, choice of the instruments suited to your question, interpretation, a written report and a session in which I explain the results in language you can go on using.
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Cabinet Individual de Psihologie Ileana Vlad · Corbeanca, Ilfov · 0753 453 262