The DIDS is a scale measuring identity processes in five domains: exploration in breadth, commitment making, exploration in depth, identification with commitment, and ruminative exploration. Each of the five dimensions is measured by 5 items, assessed on a 5-point Likert scale. According to Polish standardization, symptom severity is indicated by scores above one standard deviation from the mean.

The scale for assessing the fulfillment of adulthood criteria according to Nelson and Barry in the areas of: independence, interdependence, role transitions, conformity to norms, biological transitions, chronological transitions, family potential, and subjective perception of adulthood. The scale is qualitative in nature. Five dimensions of identity development:

Exploration in breadth: Seeking alternatives for goals and values. Commitment making: Making choices and commitments. Exploration in depth: Evaluating commitments against personal standards. Identification with commitments: Confidence and internalization of choices. Ruminative exploration: Concerns and challenges in identity development, possibly indicating a crisis.

KOP-26, by Gąsior, Chodkiewicz and Cechowski, consists of 26 items referring to the protective factors linked with personal and social competences as well as family relations. Each of the three dimensions is measured by items assessed on a 5-point Likert scale. The higher the sum of points in a given area, the higher the competencies.

The Polish adaptation of the Closeness to Biological Mother and Father Questionnaire consists of 6 questions regarding the relationship with the parent. Relationships with the mother and father are assessed separately each time on a 5-point scale.

The Polish adaptation of the Closeness to Partner/Friend Questionnaire consists of 6 questions regarding the relationship with the partner. Relationships are assessed on a 5-point scale. The task of the respondent is to respond on a 5-point scale (1 means never, and 5 means always) to six questions concerning their relationship with the partner/friend. The task of the respondent is to respond on a 5-point scale (1 means never, and 5 means always) to six questions concerning their relationship with the partner/ friend.

The Daily Problems Test by Gurba is based on the method of Sebby and Papini, who in the original version used the clinical method proposed, among others, by Piaget, based on asking questions such as "what?" and "why?". The test consists of three problems, which are translations of sample tasks by Sebby and Papini, relevant for adolescents, young adults, and aging adults.

The Polish adaptation of Mental Health Continuum-Short Form (MHC-SF) is the tool that allows for continuous assessment of subjective well-being (including its three aspects: emotional, psychological, and social), as well as for the categorical diagnosis of the presence of mental health and the absence of mental health (understood as flourishing and languishing). The answering scale is 6-points, and describes the frequency of experiencing various symptoms of well-being. The scale ranges from never to everyday (during the past month).

The WHOQOL-PL is a Polish adaptation of the quality of life assessment developed by the WHOQOL Group, focusing on an individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards, and concerns. The mean score of items within each domain is used to calculate the domain score. Domain scores are scaled in a positive directions (higher scores denote higher quality of life).

Survey of socio-demographic data (gender, age, sexual orientation, marital status, family, relationships, socioeconomic status, place of residence, educational level, habits, attitudes, others).

Polish, brief, simply-worded measure, based on IADQ, focusing on emotional adaptation to daily stress events. The calculation algorithm of IADQ is being developed by the research team (standardization).

The PSS-10 is used to measure perceived stress. It contains 10 questions related to various subjective feelings associated with personal problems and events, behaviors, and coping methods. It is used to assess the intensity of stress related to one's life situation over the past month. Individual scores on the PSS can range from 0 to 40 with higher scores indicating higher perceived stress. Scores ranging from 27-40 would be considered high perceived stress.

Personality Inventory for ICD-11 (PiCD). The four-factor structure of the Polish version of PiCD consists of three unipolar factors as Negative Affectivity, Detachment, and Dissociality factors, and one bipolar Anankastia vs. Disinhibition factor. According to Polish standardization, symptom severity is indicated by scores above one standard deviation from the mean.

The DIDS is a scale measuring identity processes in five domains: exploration in breadth, commitment making, exploration in depth, identification with commitment, and ruminative exploration. Each of the five dimensions is measured by 5 items, assessed on a 5-point Likert scale. According to Polish standardization, symptom severity is indicated by scores above one standard deviation from the mean.

The scale for assessing the fulfillment of adulthood criteria according to Nelson and Barry in the areas of: independence, interdependence, role transitions, conformity to norms, biological transitions, chronological transitions, family potential, and subjective perception of adulthood. The scale is qualitative in nature. Five dimensions of identity development:

Exploration in breadth: Seeking alternatives for goals and values. Commitment making: Making choices and commitments. Exploration in depth: Evaluating commitments against personal standards. Identification with commitments: Confidence and internalization of choices. Ruminative exploration: Concerns and challenges in identity development, possibly indicating a crisis.

KOP-26, by Gąsior, Chodkiewicz and Cechowski, consists of 26 items referring to the protective factors linked with personal and social competences as well as family relations. Each of the three dimensions is measured by items assessed on a 5-point Likert scale. The higher the sum of points in a given area, the higher the competencies.

The Polish adaptation of the Closeness to Biological Mother and Father Questionnaire consists of 6 questions regarding the relationship with the parent. Relationships with the mother and father are assessed separately each time on a 5-point scale. The task of the respondent is to respond on a 5-point scale (1 means never, and 5 means always) to six questions concerning their relationship with the parent.

The Polish adaptation of the Closeness to Partner/Friend Questionnaire consists of 6 questions regarding the relationship with the partner. Relationships are assessed on a 5-point scale. The task of the respondent is to respond on a 5-point scale (1 means never, and 5 means always) to six questions concerning their relationship with the partner/friend.

The Daily Problems Test by Gurba is based on the method of Sebby and Papini, who in the original version used the clinical method proposed, among others, by Piaget, based on asking questions such as "what?" and "why?". The test consists of three problems, which are translations of sample tasks by Sebby and Papini, relevant for adolescents, young adults, and aging adults.

The Polish adaptation of Mental Health Continuum-Short Form (MHC-SF) is the tool that allows for continuous assessment of subjective well-being (including its three aspects: emotional, psychological, and social), as well as for the categorical diagnosis of the presence of mental health and the absence of mental health (understood as flourishing and languishing). The answering scale is 6-points, and describes the frequency of experiencing various symptoms of well-being. The scale ranges from never to everyday (during the past month). The mean score of items within each domain is used to calculate the domain score. Domain scores are scaled in a positive directions (higher scores denote higher quality of life).

The WHOQOL-PL is a Polish adaptation of the quality of life assessment developed by the WHOQOL Group, focusing on an individual's perception of their position in life in the context of the culture and value systems in which they live and in relation to their goals, expectations, standards, and concerns.