Psychometric properties of a Serbian version of the State-Trait Anxiety Inventory X-2

Jakšić, Damjan; Jocić, Jovana Trbojević; Maričić, Stefan; Miçooğullari, Bülent Okan

doi:10.31382/eqol.201202

Cited by 3 publications

(2 citation statements)

References 2 publications

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“…Meanwhile, genetic factors obviously regulate and contribute to the difference in amylose content. Following Jakšić et al (2020) research, the Wx gene genetically controls amylose content by encoding a waxy protein (starch synthase bound to granules). The amylose content which is controled by amylose synthesis and regulated by Waxy (Wx) (LOC_Os06g04200) encoding Granule-Bound Starch Synthase I (GBSSI).…”

Section: Starch Content and Amylosementioning

confidence: 99%

Amylose Accumulation Under Water Deficit in Glutinous Rice (Oryza sativa L. Var. glutinosa)

Yarwati,

Barunawati,

Ariffin

2023

Agrivita.J.Agr.Sci

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The research aims to obtain a genotype of local glutinous rice tolerant to drought stress by investigating yield and physiological responses. The experiment is conducted in May-September 2020 in West Lombok, West Nusa Tenggara. The factorial experiment uses a Randomized Block Design, including the first factor: glutinous rice varieties, namely Me'e, Kala, Samada, and Paketih. The second factor is water supply, consisting of 2,250 ml, 3,375 ml, 4,500 ml, and 5,625 ml. The variables are observed stomata density, the content of proline and chlorophyll, panicle length, number and weight of grains, starch, and amylose content. The result shows that the stomata density has about 39 to 54.74 mm2 caused by water application on all glutinous rice strains. The chlorophyll content decreases to 50% following the declining amount of water application, while proline content on all varieties reaches 40% by water supply at 2,250 ml. In addition, the amylose content reaches 40% with 4,500 ml of water and 5,625 ml of water in all varieties. By contrast, increasing the amount in water supply affect several variables observed, an increase in panicle length of around 10% and the number and weight of the grains at 20% and 40%, respectively.

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Section: Starch Content and Amylosementioning

confidence: 99%

Amylose Accumulation Under Water Deficit in Glutinous Rice (Oryza sativa L. Var. glutinosa)

Yarwati,

Barunawati,

Ariffin

2023

Agrivita.J.Agr.Sci

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“…Research on gender differences in athletes’ mental skills shows inconsistent data. Namely, although some studies indicate significant gender differences in the degree of emotional regulation in favor of male handball players (e.g., Kristjánsdóttir et al, 2018 ), no gender differences in the degree of anxiety as a personality trait were found in the sample of Serbian male and female handball players, and male and female Serbian handball players were found to achieve average scores on anxiety as a personality trait ( Jakšić et al, 2020 ). Some studies have found that female football players react and perceive more intense stress and that they experience less control in stressful situations ( Kaiseler et al, 2012 ).…”

Section: Introductionmentioning

confidence: 97%

Mental skills in Serbian handball players: In relation to the position and gender of players

et al. 2022

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ObjectivesDespite the potential link between mental skills and athletic performance, little is done to examine handball players’ present level of mental skills concerning their performance. To begin with, the study has three folded aims; the first one is to examine the factor structure of Bull’s Mental Skills Questionnaire, which was developed in the United Kingdom to measure selected mental skill, of Serbian athlete population. The second aim is to determine gender differences in those mental skills, and the third aim is to determine differences between the playing positions in the mental skills of handball players to create a mental profile of Serbian handball players.Materials and methodsThe sample consisted of 170 handball players, aged 14 to 39, who have played handball at the semi-elite, competitive-elite, and successful-elite level. The modified exploratory factor analysis was used to determine the latent dimensions of the Bull’s Mental Skills Questionnaire. For examining gender differences in the manifestation of mental skills Mann–Whitney U test was used.ResultsCompared to the original structure of the questionnaire, which singles out seven factors of mental skills (imagery ability, mental preparation, self-confidence, anxiety and worry management, concentration ability, relaxation ability, and motivation), five factors were singled out in the sample of Serbian male and female handball players (anxiety and concentration management—α = 0.74; self-confidence—α = 0.75; relaxation ability—α = 0.66; mental preparation—α = 0.68, and imagery ability—α = 0.66). With these five subscales as dependent variables, results of the Mann–Whitney U test show that there are significant gender differences in variable anxiety and concentration management (U = 2893.5, p = 0.049) and relaxation ability (U = 2833.0, p = 0.031). Female handball players score higher on anxiety and concentration management and lower on relaxation ability. When playing positions are in question, results of Kruskal–Wallis‘s one-way analysis of variance, i.e., Mann–Whitney’s post hoc analysis, suggest that statistically significant differences were observed between wings and center backs and wings and goalkeepers in the imagery ability.ConclusionThe Bull’s Mental Skills Questionnaire in Serbian sample of handball players show satisfactory psychometric characteristics but has singled out five factors of mental skills compared to the original questionnaire.

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Psychometric properties of a Serbian version of the State-Trait Anxiety Inventory X-2

Jakšić¹,

Jocić²,

Maričić³

et al. 2019

Eqol

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Given that anxiety is a significant individual disposition that affects sports performance, this study aimed to verify the latent variables obtained by the State – Trait Anxiety Inventory X-2, and to compare the obtained factor solutions with the proposed model of latent variables. The second aim refers to the presentation of the results of the questionnaire State – Trait Anxiety Inventory X-2 answered by Serbian male and female handball players. The research was conducted on a sample of 170 respondents, 99 male and 71 female handball players, aged 14 to 39 years (average age = 21.9) with an average handball playing career of 9.39 years. Towards the end of 2019, the respondents filled in the above-mentioned questionnaire used to assess anxiety as a personality trait. Exploratory factor analysis with certain modifications of the algorithm was applied to determine accurately latent space. The overall analysis was performed using the R statistical package. Four factors were selected based on the conducted factor analysis of the latent space of the questionnaire. Ten, five, three and two items are projected on the first, second, third and fourth factor respectively. Since internal reliability of the fourth factor was 0.394 it was excluded from further consideration and interpretation. The achieved scores on four separate factors show that Serbian male and female handball players achieve average results on the first (Presence of Trait anxiety) and the third factor (Absence of proactivity), while they achieve scores above the average on the second factor (Positive affect). In order to examine the sex differences between the examined variables, a one-way analysis of variance was performed. The findings show that there is no statistically significant difference on all three factors between the scores achieved by male and female handball players. A statistically significant difference between handball players of different competitive ranks appeared only on the Positive affect factor between the top athletes and the athletes in the second league (p = .04).

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Psychometric properties of a Serbian version of the State-Trait Anxiety Inventory X-2

Cited by 3 publications

References 2 publications

Amylose Accumulation Under Water Deficit in Glutinous Rice (Oryza sativa L. Var. glutinosa)

Amylose Accumulation Under Water Deficit in Glutinous Rice (Oryza sativa L. Var. glutinosa)

Mental skills in Serbian handball players: In relation to the position and gender of players

Psychometric properties of a Serbian version of the State-Trait Anxiety Inventory X-2

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