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All Journal Jurnal Ilmiah Psikologi Mind Set Psychological Research on Urban Society
Sumampouw, Nathanael
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Pelatihan Peningkatan Self-Esteem pada Mahasiswa Universitas Indonesia yang Mengalami Distres Psikologis Bona Sardo Hasoloan Hutahaean; Nathanael E. J. Sumampouw
Jurnal Ilmiah Psikologi MIND SET Vol 9 No 02 (2018): Desember
Publisher : Fakultas Psikologi Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/mindset.v9i02.728

Abstract

Undergraduate students with high levels of self-esteem tend to have good adjustments in lectures. They will have the ability to deal with college problems and automatically reduce their psychological distress. This study used a quasi experimental method which is conducted to determine the increase of self-esteem in students who experience psychological distress. Participants of this study were 8 undergraduate students from Universitas Indonesia aged 18-23 years with a level of self-esteem below the value of 29 as measured by Rosenberg self-esteem scale (RSES), and had a level of psychological distress above the value of 1.75 as measured by HSCL-25. Participants were involved in the intervention of increasing self-esteem consisting of 5 main sessions for two consecutive days (about 6 hours a day). Four weeks after the second day of training, the participant's level of self-esteem and psychological distress were measured. The result of pre and posttest intervention showed that the participant’s mean score of self-esteem increased and the mean score of psychological distress decreased. The result of Wilcoxon test also showed a significant change in both variables (Z RSES = -2.246; Z HSCL-25 = -2.366; p < .05). This study shows that training intervention is effective in increasing the level of self-esteem and reducing the level of psychological distress for undergraduate students at Universitas Indonesia. Participants also commented that they gained new knowledge about self-esteem and new skills to communicate assertively and think positively.
From p-Values to Practical Relevance: An Introduction to Effect Sizes Through a Legal Psychological Example Riesthuis, Paul; Otgaar, Henry; Setiawan, Tery; Sumampouw, Nathanael; Bücken, Charlotte
Psychological Research on Urban Society Vol. 8, No. 2
Publisher : UI Scholars Hub

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Abstract

Null-hypothesis significance testing and p-values are frequently criticized for their focus on detecting non-zero differences and their inability to provide evidence for the null hypothesis. In this article, we highlight how effect sizes, when meaningfully interpreted, can address these issues. Specifically, we argue that researchers should consider the smallest effect size of interest (SESOI) - the smallest effect size that yields practical or theoretical relevance. We propose several methods for estimating the SESOI and present a consensus study among Indonesian professionals which can be used to estimate the SESOI for child eyewitness testimony research. Results suggest that most Indonesian professionals consider one to two memory errors sufficient to take action, such as deeming testimony unreliable. We then showed how the SESOI, combined with confidence intervals, can be used data and power analyses (e.g., minimum-effect testing, equivalence testing). Finally, we emphasize that the practical relevance of an effect size should be carefully evaluated before making policy recommendations.
Co-Authors Bona Sardo Hasoloan Hutahaean Bücken, Charlotte Otgaar, Henry Riesthuis, Paul Tery Setiawan