The content of this book is the result of the work of a group of researchers interested in military and public security contexts.

As their first publication, they focused on studies of specific psychometric properties related to the validity and reliability of measurement instruments that allow diagnosing observable phenomena in organizational environments, such as: motivation, adaptability, self-efficacy, organizational identification, organizational citizenship, flexibility and organizational receptivity, engagement, perceived stress, job and life satisfaction, personality, locus of control, self-esteem, social anomie, organizational commitment, coping strategies, positivity, and transversal competencies.

The group of researchers gathered due to a common interest and through periodic meetings linked to the Graduate Program in Psychology at the Federal University of Rio de Janeiro. Around 33 authors interested in these topics dedicated their efforts to composing this initial work. Topics related to education, such as competency-based teaching, as well as individuals' behaviors and perceptions in their work environments, were addressed. These investigations will go beyond diagnosis and advance toward interventions aimed at providing better quality of life and well-being for members of organizations through self-knowledge, self-determination, and self-regulation.