A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)

Abstract Background The high prevalence of depression among adolescents highlights the need for research aimed at identifying variables with predictive capacity for this condition. In parallel, the scarcity of single-item scales assessing happiness and self-efficacy underscores the importance of dev...

Full description

Saved in:
Bibliographic Details
Main Authors: David Javier-Aliaga, José Anicama, Yaquelin E. Calizaya-Milla, Jacksaint Saintila
Format: Article
Language:English
Published: BMC 2025-07-01
Series:BMC Psychology
Subjects:
Online Access:https://doi.org/10.1186/s40359-025-02760-7
Tags: Add Tag
No Tags, Be the first to tag this record!
_version_ 1849767093198651392
author David Javier-Aliaga
José Anicama
Yaquelin E. Calizaya-Milla
Jacksaint Saintila
author_facet David Javier-Aliaga
José Anicama
Yaquelin E. Calizaya-Milla
Jacksaint Saintila
author_sort David Javier-Aliaga
collection DOAJ
description Abstract Background The high prevalence of depression among adolescents highlights the need for research aimed at identifying variables with predictive capacity for this condition. In parallel, the scarcity of single-item scales assessing happiness and self-efficacy underscores the importance of developing validated instruments tailored to the Peruvian context. This study aims to examine the predictive roles of perfectionism, self-efficacy, and happiness on depression, as well as the moderating role of sex among Peruvian adolescents. Additionally, it proposes the development of two new instruments: the Javier-Aliaga’s Single-Item Scale of Happiness and the Single-Item Scale of Self-Efficacy. Methods A cross-sectional predictive study was conducted in 380 adolescents from a public school in Lima, Peru, of whom 50.3% were male and Mage = 13.9 (SD = 1.16). The Reynolds Adolescent Depression Scale (RADS-2), the 6-item Perfectionism Scale (EDI-P6), the Javier-Aliaga’s Single-Item Scale of Happiness (JASIHS-v1.0) and the Single-Item Scale of Self-Efficacy (JASISS-v1.0) were used. Predictive analysis was performed using multiple linear regression. Results The multiple regression analysis showed that Model 2 was the most appropriate (F = 128, p < 0.001, BIC = 2878). The variables perfectionism (β = 0.283, CI [0.215, 0.351], p < 0.001), self-efficacy (β = -0.236, CI [-0.312, -0.161], p < 0.001), happiness (β = -0.386, CI [-0.463, -0.309], p < 0.001), and sex (β = 0.239, CI [0.170, 0.307], p < 0.001) explained 57.3% of the variability in depression (adjusted R2 = 0.573), with happiness being the most influential variable (β = -0.386). The moderation analysis revealed that sex significantly moderated the relationships between perfectionism (b = 0.713, CI [0.166, 1.260], p = 0.011), self-efficacy (b = -3.845, CI [-6.097, -1.593], p = 0.001), and happiness (b = -3.750, CI [-6.134, -1.367], p = 0.002) with depression, with these interactions being stronger in females. Additionally, the JASISS-v1.0 and JASIHS-v1.0 demonstrated excellent content validity (Aiken’s V = 1.00; M = 3.00; SD = 0; 95% CI = 0.70–1.00) and acceptable test–retest reliability (0.71 for the JASISS-v1.0 and 0.76 for the JASIHS-v1.0). Conclusion The findings highlight the significant influence of perfectionism, self-efficacy, and happiness on depression among Peruvian adolescents, with happiness emerging as the most impactful variable. Moreover, the moderating role of sex suggests that interventions targeting these factors should be designed differently for males and females. Additionally, the development and validation of the JASIHS-v1.0 and the JASISS-v1.0 represent a valuable contribution by providing brief, culturally relevant, and psychometrically sound instruments.
format Article
id doaj-art-d3d8a16ed0a94d9b8c217847aa1641da
institution DOAJ
issn 2050-7283
language English
publishDate 2025-07-01
publisher BMC
record_format Article
series BMC Psychology
spelling doaj-art-d3d8a16ed0a94d9b8c217847aa1641da2025-08-20T03:04:21ZengBMCBMC Psychology2050-72832025-07-0113111610.1186/s40359-025-02760-7A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)David Javier-Aliaga0José Anicama1Yaquelin E. Calizaya-Milla2Jacksaint Saintila3Faculty of Health Sciences, Universidad Peruana UniónSchool of Psychology, Faculty of Psychology, Universidad Nacional Federico VillarrealFaculty of Health Sciences, Universidad Peruana UniónResearch Group for Nutrition and Healthy Behaviors, School of Medicine, Universidad Señor de SipánAbstract Background The high prevalence of depression among adolescents highlights the need for research aimed at identifying variables with predictive capacity for this condition. In parallel, the scarcity of single-item scales assessing happiness and self-efficacy underscores the importance of developing validated instruments tailored to the Peruvian context. This study aims to examine the predictive roles of perfectionism, self-efficacy, and happiness on depression, as well as the moderating role of sex among Peruvian adolescents. Additionally, it proposes the development of two new instruments: the Javier-Aliaga’s Single-Item Scale of Happiness and the Single-Item Scale of Self-Efficacy. Methods A cross-sectional predictive study was conducted in 380 adolescents from a public school in Lima, Peru, of whom 50.3% were male and Mage = 13.9 (SD = 1.16). The Reynolds Adolescent Depression Scale (RADS-2), the 6-item Perfectionism Scale (EDI-P6), the Javier-Aliaga’s Single-Item Scale of Happiness (JASIHS-v1.0) and the Single-Item Scale of Self-Efficacy (JASISS-v1.0) were used. Predictive analysis was performed using multiple linear regression. Results The multiple regression analysis showed that Model 2 was the most appropriate (F = 128, p < 0.001, BIC = 2878). The variables perfectionism (β = 0.283, CI [0.215, 0.351], p < 0.001), self-efficacy (β = -0.236, CI [-0.312, -0.161], p < 0.001), happiness (β = -0.386, CI [-0.463, -0.309], p < 0.001), and sex (β = 0.239, CI [0.170, 0.307], p < 0.001) explained 57.3% of the variability in depression (adjusted R2 = 0.573), with happiness being the most influential variable (β = -0.386). The moderation analysis revealed that sex significantly moderated the relationships between perfectionism (b = 0.713, CI [0.166, 1.260], p = 0.011), self-efficacy (b = -3.845, CI [-6.097, -1.593], p = 0.001), and happiness (b = -3.750, CI [-6.134, -1.367], p = 0.002) with depression, with these interactions being stronger in females. Additionally, the JASISS-v1.0 and JASIHS-v1.0 demonstrated excellent content validity (Aiken’s V = 1.00; M = 3.00; SD = 0; 95% CI = 0.70–1.00) and acceptable test–retest reliability (0.71 for the JASISS-v1.0 and 0.76 for the JASIHS-v1.0). Conclusion The findings highlight the significant influence of perfectionism, self-efficacy, and happiness on depression among Peruvian adolescents, with happiness emerging as the most impactful variable. Moreover, the moderating role of sex suggests that interventions targeting these factors should be designed differently for males and females. Additionally, the development and validation of the JASIHS-v1.0 and the JASISS-v1.0 represent a valuable contribution by providing brief, culturally relevant, and psychometrically sound instruments.https://doi.org/10.1186/s40359-025-02760-7AdolescentDepressionHappinessPerfectionismSubjective well-beingSelf-efficacy
spellingShingle David Javier-Aliaga
José Anicama
Yaquelin E. Calizaya-Milla
Jacksaint Saintila
A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
BMC Psychology
Adolescent
Depression
Happiness
Perfectionism
Subjective well-being
Self-efficacy
title A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
title_full A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
title_fullStr A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
title_full_unstemmed A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
title_short A predictive and moderation model of depression in adolescents, and the creation of the Javier-Aliaga’s single-item scales of happiness and self-efficacy (version 1.0)
title_sort predictive and moderation model of depression in adolescents and the creation of the javier aliaga s single item scales of happiness and self efficacy version 1 0
topic Adolescent
Depression
Happiness
Perfectionism
Subjective well-being
Self-efficacy
url https://doi.org/10.1186/s40359-025-02760-7
work_keys_str_mv AT davidjavieraliaga apredictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT joseanicama apredictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT yaquelinecalizayamilla apredictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT jacksaintsaintila apredictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT davidjavieraliaga predictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT joseanicama predictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT yaquelinecalizayamilla predictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10
AT jacksaintsaintila predictiveandmoderationmodelofdepressioninadolescentsandthecreationofthejavieraliagassingleitemscalesofhappinessandselfefficacyversion10