Flow is a positive and optimal state of mind, during which people are highly motivated and absorbed in the activity they are doing. It is an experience that can occur in any area of life. One of the measurement instruments which is most commonly used to evaluate this construct is the Flow State Scale-2 (FSS-2). This instrument has been used in different languages, mainly in the field of sport. In this research work, the FSS-2 has been translated into Spanish and administered to 486 musicians from different regions of Spain in order to examine the psychometric properties. A version which uses six dimensions from the original questionnaire has been used-those that constitute the experience of flow-and four alternative models have been analysed (Six related factors model, two second order factor models and a bifactor model).The results revealed that the dimension time could be controversial and more research could be needed. In general terms, the six-factor model (RMSEA = .04; GFI = .99; AGFI = .99) and a second-factor one (RMSEA = .033; GFI = .99; AGFI = .99) are solutions consistent with previous studies and show that the questionnaire can be considered a reliable (Alphas of the dimensions range from .81 to .94; Omegas from .86 to .97; and mean discrimination of the dimensions from .64 to .88) and useful tool, both in clinical and educational contexts, as well as an instrument for the evaluation of this construct in future research. However, the results of this study also suggest that flow can be explored in greater depth in musicians, taking into account that the writing of the original items was based on the experience of athletes and that the role of time in flow needs to be investigated.

The current investigation defines the organizational tolerance (OT) construct and statistically assesses its measurement instrument, the perceived organizational tolerance for psychological workplace harassment (POT) scale, carried out to evaluate the level of tolerance, negligence, or even connivance that can be shown by an organization when it deals with an inappropriate act occurring within its scope. Tolerance of such acts has been identified as a hindrance when trying to establish an effective and sustainable strategy for the well-being of workers. A survey that measures the construct was distributed, and 195 employed workers answered. In the first stage of analysis, a scale reduction process was applied to the obtained data using a factor extraction method, and afterward, confirmatory factor analysis was performed using structural equation models. The results validated the scale as a model of five factors: Promotion, feedback, ethics, coherence, and training. These findings indicate that this scale is acceptable as a quantifier of a key issue, namely, the diligence of the organization when dealing with psychosocial risks at work. This new construct is anticipated to be incredibly useful for measuring as much research as possible on the behavior of organizations when they deal with negative acts, with the aim of promoting sustainable healthy working environments.

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