1.1 Resilience: a remarkable gift we all possess
The skill of adaptation is much needed for our constantly changing world. People meet adversities they must cope with every day, and according to Ann S. Masten (1) the ability to adapt well is not a unique and exceptional gift. ‘Ordinary Magic’ is indeed quite common, deriving from basic functioning of the human adaptational system. If these systems are operating well, the outcome of even adverse events may be positive and thus, they result in foreseeable development. On the other hand, if basic adaptive functioning is impaired, developmental problems are likely to occur.
Definitions of resilience show considerable differences across disciplines. As a prestigious panel of resilience researchers pointed out, it can be considered as a trait, a process, or an outcome (2, 3). They highlight that a complex, multi-level approach is inevitable to study resilience including insights from genetic, developmental, and social perspectives. Interestingly, the term is often handled in a binary ‘present’ or ‘absent’ manner, despite the fact that resilience is most likely a continuum (2, 3). Masten suggested an integrated, system-based approach and a broad conceptualization of resilience for the following reasons: First, it is a key concept in many disciplines from ecology, engineering, to the study of the healthcare system, child development or in understanding reactions to traumatic events. Thus, the term should be interpretable at various levels from molecular biology to various levels of human behavior. She defined resilience “as the capacity of a dynamic system to adapt successfully to disturbances that threaten system function, viability, or development” (p. 6 in 4). Others share this approach and conclude that resilience implies “a stable trajectory of healthy functioning after a highly adverse event; a conscious effort to move forward in an insightful and integrated positive manner as a result of lessons learned from an adverse experience; the capacity of a dynamic system to adapt successfully to disturbances that threaten the viability, function, and development of that system; and a process to harness resources in order to sustain well-being.” (p. 11 in 2)). Hungarian researchers also highlight that the complex phenomenon of resilience may be considered as a feature of complex adaptive systems (5).
1.2 What is the key to resilience?
Studies in the field revolved around three core questions, molding results of resilience research and their interpretations (6). First, it is important to define what life events may be considered as challenging. Studies to date included a wide range of risks, e.g. trauma, neglect, adverse childhood experiences, poverty, natural disaster, and war. Adverse childhood experiences most often imply multiple negative life events, thus most studies measure combined occurrence by cumulative risk scores. More severe and more frequent adversities result in lower adaptive success in general. On the other hand, individuals at similar level of risk show characteristically different degrees of successful adaptation. Timing is also a key component. For example, it seems to be crucial at which developmental stage do children meet with adversities or experience protective factors. The second question addresses the criteria for adaptive success. Successful completion of age-specific developmental tasks, mental and psychical health, and emotional well-being were typically studied. The third question investigates the “key to success” at various levels. Promotive or protective factors have been defined at neurobiological, behavioral, family, community, cultural and societal levels. Interestingly, systematic integration of these levels has only started recently (e.g. 7).
Is resilience a trait?
Certain personality characteristics have been highlighted as key factors of resilience (8). In fact, several researchers attempted to identify certain personality characteristics and abilities that are specific to those individuals who cope well with a highly stressful life events (9–11). Adult studies show that resilience is positively correlated with the temperament dimensions of reward dependence and persistence. On the other hand, there is negative correlation between resilience and harm avoidance (e.g. 12, 13, 14). Several results highlight that temperament is correlated with resilience not only in the adulthood but also in children. The role of the easy child temperament has been shown in the development of resilience (e.g. 15). A longitudinal study points to the role of childhood temperament on shaping resilience in adulthood (16). They assessed developmental trajectories of 205 young people from age 10 to age 30. When faced with adversities the high competence (resilient) group showed characteristically more conscientiousness, agreeableness, and openness and lower neuroticism as compared to the low competence (maladaptive) group with adversities. The assessment of “turnaround cases” in the same study (those who were in the maladaptive group in early adulthood but changed to the resilient group in their young adulthood) highlight the importance of conscientiousness in early childhood. It is important to note, that although association of resilience and personality or temperament dimensions might seem evident, certain traits may serve as vulnerability or as a protective factor based on their interaction with individual or circumstantial differences at various levels. Research to date on differential susceptibility to the environment highlight that experience and context has a significant moderating power on the course from individual differences to adaptive functioning (4, 6).
In the last few decades, there has been a shift in the research of adaptation and development: while earlier deficit-based models focused on psychopathologies (e.g. PTSD), competence-based models underline prevention and building strengths, like resilience (2). Zolkoski and Bullock (17) summarized longitudinal studies about youth with learning disabilities and attention-deficit/hyperactivity disorder (ADHD). Results show that resilient learning-disabled adolescents have certain characteristics in common. They look for personal control over their lives and they are willing to seek out and accept support. Furthermore, they set goals and possess a strong will to succeed. Finally, they demonstrate high levels of persistence.
1.3 Measuring resilience
A methodological review tested 19 resilience measurement scales (18) and concluded that three of these had the best psychometric ratings. These are the Connor-, the Resilience Scale for Adults, and the Brief Resilience Scale.
The 10-item Connor-Davidson Resilience Scale (10-item CD-RISC) is the most often used self-assessment scale of resilience for adults. The tool has been developed from the original 25 item, 5-factor Connor-Davidson Resilience Scale (19). The exploratory factor analysis of the 25-item version CD-RISC in large (ns > 500) undergraduate subsamples have shown that the original factor structure was not stable across the two subsamples from the same population. After several modifications a 10-item single-factor solution was developed which have demonstrated good internal consistency and construct validity on a third large sample of the undergraduates (20). The final 10-item CD-RISC explores persistence and hardiness: the ability to endure change, problems, stress, illness, pressure, failure, hardship, failure, and feelings of pain. Authors claim that these skills enable “bouncing back” from everyday challenges. The Connor-Davidson Resilience Scale has been translated to many languages. Reliability and validity studies review psychometric properties of these foreign language versions including clinical and non-clinical populations (e.g. 21, 22–26). A German study (27) used the Brief Resilient Coping Scale in a non-clinical population and their results highlight relevance of age differences and the need for normative data in investigating resilience.
For measuring resilience in Hungarian, Járai and colleagues have complied a 10-item adult questionnaire (28) and have tested reliability and validity of this measure on a sample of 1459 participants. Their results indicated adequate reliability of their single-scale resilience measure (Cronbach’s alpha = 0.85).
A methodological review of different resilience measurement scales emphasized that self-rated scales are adequate for adolescents and adults (18), but not for younger children. For the assessment of resilience in young children, LeBuffe and Naglieri (29) developed the Devereux Early Childhood Assessment (DECA), which can be filled out by preschool program directors or teachers. Different age-specific versions of this assessment tool have been developed. There are other tools for measuring children’s resilience-related variables (8), however these are relatively long: consisting of 37–67 items. Hungarian versions of the above resilience measures for children do not exist.
1.4 Temperament and resilience
According to the traditional definition temperament is an independent psychological attribute which contains inherited personality traits appearing in early life and it is a response to the external stimulus (30). On the other hand, Shiner and colleges (31) emphasize that recent progress on temperament research provided an alternative definition: “Temperament traits are early emerging basic dispositions in the domains of activity, affectivity, attention, and self-regulation, and these dispositions are the product of complex interactions among genetic, biological, and environmental factors across time.” (p. 437).
Most researchers exploring links between resilience and temperament have used the Big Five traits: extraversion, neuroticism, conscientiousness, agreeableness, and openness to experience. A recent meta-analysis (9) investigated the relationship of resilience and Big5 personality traits on 30 studies of children and adults and confirmed positive correlation ranging from r = 0.31 to r = 0.42 in all Big 5 traits, except for Neuroticism, which was negatively correlated with resilience (r = − 0.46). On the other hand, the widely accepted emotionality, activity, sociability dimensions have not been investigated systematically with relation to resilience.
The EAS Theory of Temperament (32) contains three distinct traits: emotionality, activity, and sociability. The acronym EAS replaced the original acronym EASI (emotionality, activity, sociability, and impulsivity) due to the author’s strict criteria for temperament based on both heredity and early appearance (33). Since impulsivity did not meet the criteria of early appearance this psychological trait was left out from the theory and the related self-report measurement. Due to the difficulty of measuring sociability of children, the child version of EAS includes both a sociability and a shyness scale. Thus, the EAS Temperament Survey for Children consists of four distinct scales: emotionality, activity, sociability and shyness. The assessment tool has two versions: the parental ratings and the teacher ratings. Stability of EAS temperament scales were confirmed in a sample of 3.5-6 years old children (34). Reliability analysis of the original scale (32) showed internal consistencies around 0.83 and the test-retest reliabilities were satisfactory (test-retest correlations were 0.72 for emotionality, 0.80 for activity and 0.58 for sociability/shyness). Adaptation of the EAS Temperament Survey to different languages resulted acceptable results with regards to psychometric assessment (35–37).
1.5 Summary and implications for the present research
Resilience has a crucial role in positive adaptation to challenges of our daily lives as well as for dealing with serious threats. Studies investigated various protective factors related to the ability to overcome difficulties. Competence-based approaches highlight the importance of developing and preserving the capacity for positive adaptation, fostering the virtue of resilience. Interestingly, most studies recruited adults or school age children, whereas research on resilience components in kindergarten aged children is scarce. English-language resilience measurement tools have been translated for adults to Hungarian, however, similar scales for kindergarten aged children are not available in Hungarian.