Introduction: Suicide is one of the leading cause of mortality among adolescents and young adults, especially in low to middle-income countries. Research found that screening for suicidal ideation in non-clinical populations such as schools or communities is an important step toward preventing suicide. Despite so, not all screening tools have the capabilities to accurately detect suicidal ideation among adolescents and young adults in non-clinical populations. The Suicidal Ideation Scale (SIS) is one of the most used questionnaires to measure suicidal thoughts in non-clinical populations. This study aims to investigate the psychometric properties of SIS among adolescents and young adults in Indonesia, especially in non-clinical populations. Methods: After a series of language and cultural adaptations, 1254 senior high school and university students completed the Indonesian version of SIS using 3 standard questionnaires, namely Patient Health Questionnaire-9/PHQ-9, Beck Depression Inventory-II/BDI-II, and Children’s Depression Inventory/CDI. The SIS content validity, internal consistency, test-retest reliability and concurrent, as well as internal structure validity, were investigated using content validity index (CVI), Cronbach’s Alpha, Pearson product-moment correlation, and confirmatory factor analysis (CFA), respectively. Results: The result showed that SIS has good to excellent internal consistency and test-retest reliability. Based on the validity indicators, it has satisfactory content and convergent validity, and further support the one-factor and 2-factor model for factorial validity. Both one-factor and 2 factor model are suitable to use in non-clinical settings. Conclusions: SIS is a valid and reliable tool for suicide ideation screening in adolescents and young adults in non-clinical populations. This validated questionnaire can be used in the early detection of suicidal ideation among adolescents and young adults in non-clinical populations, thus contributing to developing strategies and policies to prevent suicide among Indonesian adolescents and young adults at group and institutional levels.

Background: Work engagement is the antecedent of various outcomes, for instance, performance and well-being. Employees can deeply involve when they have an excellent level of work engagement at work. They become more productive that impacts the organization's benefits and has a positive effect on them. Our study tested whether stress relates negatively to work engagement and if a relationship would be mediated by meaningful work. Method: The research design was a cross-sectional study; 203 participants were included, who work as civil servants and private employees with a minimum education at the undergraduate level. They filled out the scales distributed online. The model was tested used a structural equation model. Result: The result shows a direct negative association between perceived stress and work engagement, a direct negative association between perceived stress and meaningful work, meanwhile a direct positive relationship between meaningful work and work engagement. Henceforward, the structural equation model reveals that meaningful work partially mediated a negative association between perceived stress and work engagement. Conclusion: The study has proved that the empirical evidence of how perceived stress can contribute to work engagement, and in this study, the relationship between the two variables can interfere with meaningful work.

A sudden jump in the value of the state variable in a certain dynamical system can be studied through a catastrophe model. This paper presents an application of catastrophe model to solve psychological problems. Since we will have three psychological aspects or parameters, intelligence (I), emotion (E), and adversity (A), a Swallowtail catastrophe model is considered to be an appropriate one. Our methodology consists of three steps: solving the Swallowtail potential function, finding the critical points up to and including threefold degenerates, and fitting the model into our measured data. Using a polynomial curve fitting derived from the potential function of Swallowtail catastrophe model, relations among three parameters combinations are analyzed. Results show that there are catastrophe phenomena for each relation, meaning that a small change in one psychological aspect may cause a dramatic change in another aspect.

Suicide remains one of the leading causes of death among youths and the commonly reported associated risk factor is interpersonal needs, which consists of perceived burdensomeness and thwarted belongingness. To date, there is no validated interpersonal needs questionnaire in Indonesia. Therefore, this research aims to validate and evaluate the psychometric properties of the Interpersonal Needs Questionnaire (INQ-15) among adolescents and young adults in the Indonesian language. Based on the results, the INQ-15 has high internal consistency and test-retest reliability. It was also found to have satisfactory content and concurrent validity, as well as support two factor model of factorial validity. This implies that The Indonesian version of the INQ-15 is a valid and reliable questionnaire to measure the interpersonal needs among adolescents and young adults, both in clinical and research applications.

Purpose The study aims to adapt and validate the Indonesian version of the commitment to change scale that was initially developed by Herscovitch and Meyer. Methods Data were collected using an online application among faculty members of several universities who have experienced policy changes from the Indonesian government regarding research-related issues. A total of 204 responses were obtained. The data was validated using the Content Validity Index (CVI), the Confirmatory Factor Analysis (CFA), the Convergent and Discriminant correlations as well as the Cronbach’s alpha. Results The results demonstrated that commitment to change could be represented by three dimensions of affective, continuance and normative commitment to change, although there is one item that must be adjusted. The results of the Scale-Content Validity Index (S-CVI) show that the commitment to change scale has excellent content validity (S-CVI/Ave = 0.97). CFA results show a good fit, Cronbach’s alpha obtains good results with ACTC (α = 0.71); CCTC (α = 0.83); NCTC (α = 0.77) and Construct Reliability (CR) values obtained are also quite good with ACTC = 0.85; CCTC = 0.86; NCTC = 0.86. From the results of the convergent and discriminant validity tests, it was found that the affective commitment to change positively correlates with job satisfaction and negatively correlates with job stress. However, both continuance and normative commitment to change scale does not correlate with the two variables. Conclusion The Indonesian version of the commitment to change scale shows good psychometric properties and has proven valid to provide the measurement of commitment to change, especially for the faculty members in Indonesia.