Pictorial Scale Research Articles

Comparative Evaluation of Visual and Taste Distraction Techniques using RMS Pictorial Scale in making of Periapical Radiographs

Comparative Evaluation of Visual and Taste Distraction Techniques using RMS Pictorial Scale in making of Periapical Radiographs

Time to recharge batteries – development and validation of a pictorial scale of human energy

ABSTRACT A common theme across phenomena like vitality, vigor, and fatigue is that they all refer to some aspect of energy. Since experience sampling methodology has become a major approach, there is a significant need for a time-effective and valid measure of energetic activation. In this study, we develop and examine the validity of a single-item pictorial scale of energetic activation. We examine the convergent, discriminant, and criterion-related validity of the pictorial scale and scrutinize the practical advantages of applying a pictorial vs. a purely verbal item concerning response latencies and user experience ratings. We conducted two consecutive experience sampling studies among 81 and 109 employees across 15 and 12 days, respectively. Multilevel confirmatory factor analyses provide evidence that the pictorial scale converges strongly with vitality and vigor, relates to fatigue, is distinct from facets of core affect, and shows expected correlations to antecedents of energetic activation. Energetic activation as measured with the pictorial scale was predicted by sleep quality and basic need satisfaction, and predicted work engagement. The pictorial scale was superior to a purely verbal scale regarding response latencies and participant-rated user experience. Hence, our scale provides a valid, time-efficient, and user-friendly scale suited for experience sampling research.

Psychometric Properties of the French Version of the Pictorial Scale of Perceived Movement Skill Competence for Young Children (PMSC)

ObjectiveThe objective of this study was to examine the psychometric properties of a French version of the pictorial scale of Perceived Movement Skill Competence for Young Children (PMSC), which is aligned with the third version of the Test of Gross Motor Development. MethodA sample of 219 French-speaking Canadian children (5 to 12 years old) participated in this study. ResultsResults supported the factor validity and reliability of a 13-item version of the PMSC encompassing two factors (i.e., ball skills and locomotor skills). Subsequent analyses supported the weak, partial strong, and partial strict invariance of responses to the PMSC as a function of sex. Additionally, analyses revealed that boys displayed significantly higher perceived ball skill competence than girls. Results also supported a lack of differential item functioning (DIF) and latent mean differences as a function of body mass index and physical activity/sport involvement, but revealed evidence of DIF and latent mean differences as a function of age. More precisely, these results show that older children displayed significantly: (a) higher scores on the sliding item and lower scores on the kicking item relative to younger children; and (b) lower scores on perceived locomotor skills competence than younger children. ConclusionOverall, results suggest that the French version of the PMSC has acceptable psychometric properties and can be confidently used in research or practice to assess children's perceived movement skill competence.

Dental Anxiety Scales Used in Pediatric Dentistry: A Systematic Review and Meta-analysis

To assess various dental anxiety scales used in children and to know the effectiveness of different projective dental anxiety scales used in pediatric dentistry. Dental anxiety poses a significant problem in child patient management and is considered to be the main barrier for successful completion of the dental treatment. This systematic review and meta-analysis has been registered at the International prospective register of systematic reviews-PROSPERO-CRD42021247586. The systematic review was conducted in accordance with the Preferred Reporting Items in Systematic Review and Meta-Analysis (PRISMA) guidelines. Electronic databases [PubMed (MEDLINE), COCHRANE Library, EMBASE, EBSCO host, and Google Scholar database] were searched for corresponding references up to 2021. Observational cross-sectional studies comparing two different dental anxiety scales were selected for this systematic review. Search strategy generated 500 articles out of which 13 studies included in qualitative synthesis and only 7 studies were taken for quantitative synthesis. Among these seven studies, five studies compared FIS and VPT scales, two studies compared RMS, FIS, and VPT scales. Results of meta-analysis showed that an overall mean difference of dental anxiety between VPT and FIS scales was 0.11 (95% CI: 0.26-0.48), RMS and FIS scales was 0.05 (95% CI: 0.40-0.50), RMS and VPT was 0.27 (95% CI: 0.80-0.27) in the investigated population. No statistically significant difference was noted in all comparisons suggesting that all these scales are at par in assessing anxiety levels in pediatric population. The projective scales Raghavendra, madhuriu, sujata pictorial scale (RMS), Facial image scale (FIS), and Venham's picture test (VPT) can be a pragmatic tool in assessing children's dental anxiety.

Children's feelings about piano performances across a year of study.

Solo performance is a common experience for children learning to play an instrument, yet the research literature on these experiences is limited, with a focus on older children and adolescents. The purpose of this study was to examine younger children’s feelings about performance over the course of a year of study. Forty-one children were interviewed about their piano lessons and performance experiences at the end of two consecutive semesters of study. They also responded to a pictorial scale on their feelings about performance at each interview and again at two piano recitals. Results indicate that children are remarkably consistent in their feelings about performing in piano recitals, with few significant changes over time and context. Correlation analyses indicate changes in the relationships between feelings about performance and certain study variables over time—in particular age, liking of lessons, liking of performing, practice time, and perception of being good at piano. In the fall term, gender and age are significant predictors of feelings about performance, with younger children and boys feeling most positive. In the spring, the findings shift and the only significant predictor is children’s liking of piano lessons. Implications and directions for further research are discussed.

Effectiveness of Visual Distraction with and without Virtual Reality Glasses in Reducing Dental Anxiety among Children with Hearing and Speech Disability: A Pilot Study.

Aim and objectiveTo assess the effectiveness of visual distraction with and without virtual reality glasses in reducing dental anxiety among children with hearing and speech disabilities undergoing dental treatment.Materials and methodsTwenty-four children with hearing and speech disabilities aged 6-12 years were selected and were randomly divided into three groups (N = 8). Children in group A received no distraction, group B received visual distraction using virtual reality (VR) glasses and group C received visual distraction without VR glasses during dental treatment. The anxiety levels were measured using PJS- Pictorial Scale and physiological parameters - before, during, and after a dental procedure. Then intragroup and intergroup comparison was done.ResultsIntragroup comparison showed that “During” and “Post” treatment anxiety scores were significantly (p < 0.05) lower than that of “baseline” in group B. Intergroup comparison of anxiety scores in the three groups, at all three intervals, showed a statistically significant difference in the “during treatment” anxiety score (p = 0.049) with least score in group B.ConclusionVisual distraction using VR glasses can be recommended as an effective distraction technique in reducing dental anxiety among children with speech and hearing disabilities.How to cite this articleKaur J, Shivashankarappa PG, A S, et al. Effectiveness of Visual Distraction with and without Virtual Reality Glasses in Reducing Dental Anxiety among Children with Hearing and Speech Disability: A Pilot Study. Int J Clin Pediatr Dent 2021;14(S-2):S162-S166.

Quantification of Respiratory and Muscular Perceived Exertions as Perceived Measures of Internal Loads During Domestic and Overseas Training Camps in Elite Futsal Players.

BackgroundThe rating of perceived exertion (RPE) scales with respiratory and muscular illustrations are recognized as simple and practical methods to understand individual psychometric characteristics in breathing and muscle exertion during exercise. However, the implementation of respiratory and muscular RPE to quantify training load in futsal training camps has not been examined. This study investigates respiratory and muscular RPE relationships during domestic training camps (DTC) and overseas training camps (OTC) in an under 20 futsal national team.MethodsData collected from eleven field players were used for comparison in this study (age = 18.7 ± 0.7 years, height = 171.9 ± 6.1 cm, body weight = 64.2 ± 8.4 kg). All players reported Borg CR10 RPE (RPECR10) and 7-scales respiratory RPE (RPErespiration) and muscular RPE (RPEmuscle) (Dalhousie pictorial scales) after training sessions and matches. Additionally, total distance covered (TD) and training impulse (TRIMP) were used to quantify external and internal loads via the Polar Team Pro system. Paired-sample t-tests were used to compare the RPECR10, RPErespiration, RPEmuscle, TD, and TRIMP between DTC and OTC. Furthermore, linear regression was performed to determine the relationships among all RPE scales, TD, and TRIMP.ResultsThe RPECR10 (p = 0.047), TD (p < 0.001), and TRIMP (p < 0.001) showed significant difference between DTC and OTC. Furthermore, linear regression analyses showed significant correlation between RPErespiration and RPEmuscle (DTC: r = 0.857, p = 0.006; OTC: r = 0.924, p < 0.001), RPECR10 and RPErespiration (DTC: r = 0.857, p = 0.001; OTC: r = 0.863, p = 0.001), and RPECR10 and RPEmuscle (DTC: r = 0.906, p < 0.001; OTC: r = 0.900, p < 0.001).ConclusionPictorial RPErespiration or RPEmuscle can be used as an alternative to quantify perceived measures of internal loads during DTC and OTC in futsal players. Interpretation of perceived measures of training load and cardiac-related responses in association with external training loads during short-term training camps would be useful in further understanding the demands of futsal players’ experience in these circumstances.

Outcome of Conventional versus Digital Mode of Behaviour Modification With or Without Maternal Presence in Paediatric Dental Patients- A Pilot Study

Introduction: In managing paediatric patients most common challenge is to encounter child’s fear and anxiety during dental procedures. In modern era smart phone dentist games can be used as a modification of Tell Show Do (TSD) technique. Aim: To evaluate the effectiveness of different behaviour modification techniques in paediatric patients at first dental visit and to compare conventional techniques: TSD, TSD + maternal presence, Mobile Dental game (MD) and MD + maternal presence as behaviour modification techniques in preschool children. Materials and Methods: The present pilot study (a randomized parallel group clinical trial) was conducted in the Department of Paediatric and Preventive Dentistry of Faculty of Dental Sciences, SGT University, Gurugram,Haryana from July 2021 to December 2021 over a period of 6 months in 80 children Between the age group of 4 to 6 years with deft (d=decayed, e=extracted due to caries, f=filled, t=teeth) &lt;3 and caries in any primary second molar indicated for Glass Ionomer Cement (GIC) filling, visiting the dentist for the first time. Patient with Frankl behaviour rating score of 1 and 2 accompanied by their mothers with positive dental attitude were included. Patients were equally divided into four groups. Behaviour was assessed using Frankl behaviour rating scale, Raghavendra, Madhuri, Sujata Pictorial scale (RMS-PS) and Face, Leg, Activity, Cry, Consolability (FLACC) scale before and after treatment. Results: The mean age of patients in the study was 4.99±0.92 years. The difference between pre and post Frankl behaviour rating score and RMS-PS were statistically significant in all the four groups (p&lt;0.01), whereas difference in pre and post FLACC score was significant in group 2 and 4 (p&lt;0.01). On comparing mean RMS-PS between four groups, significant difference was observed in group 1 and 4 (p&lt;0.01). When mean FLACC score was compared, significant difference was observed between mean scores of Group 1 compared to Group 2 and Group 4. Conclusion: In the present study all the behaviour modification techniques showed improvement in child’s behaviour but use of digital mode of behaviour management along with maternal presence in paediatric dental operatory had displayed significantly better results.

Identifying actual and perceived motor competence based profiles among children

ABSTRACT This study aimed to develop motor competence (MC) profiles in children based on their actual and perceived MC, and to investigate differences in physical activity (PA) behaviour and motivation towards PA between profiles. Two hundred and sixteen British children (7–10 years) took part in this study. Perceived motor competence (PMC) was assessed using the pictorial scale of movement competence. MC was assessed using process-oriented and product-oriented measures. A validated questionnaire assessed motivation towards PA and an objective measure of PA was employed. K-means cluster analysis was used to create profiles. Differences in PA and motivation towards PA were examined using ANCOVAs. Four groups of divergent and convergent levels were identified based on the contribution of either product or process MC with PMC. Motivation towards PA differed by profiles that included actual-process and PMC. Children with high actual process and high PMC had significantly higher levels of autonomous motivation than children with high actual process but low PMC. No significant differences were found between PA levels and profiles. Developing the quality and execution of actual motor competence (AMC) and PMC is key to stimulate motivation towards PA. Furthermore, maintaining AMC and PMC simultaneously may be imperative to children’s future PA behaviour.

Investigating Relationships between Preschool Children's Perceived Competence, Motor Skills, and Physical Activity: A Cross-Lagged Panel Model.

Background: Motor skill competence (MSC) and perceived competence (PC) are primary correlates that are linked with physical activity (PA) participation, yet there is limited evidence of the mutual longitudinal or temporal associations between these variables in preschoolers. Therefore, this study’s purpose was to examine the bidirectional relationships between MSC and PA, MSC and PC, and PC and PA in preschoolers over time. Methods: The final sample were 61 preschoolers (Mage = 4.45 years, ranging from 4 to 5) from two underserved schools. MSC was assessed using the Test of Gross Motor Development, Second Edition (TGMD-2). PC was assessed using the Pictorial Scale of Perceived Competence and Social Acceptance for Young Children. PA was assessed using ActiGraph GT9X Link accelerometers during three consecutive school days. All assessments of MSC, PC, and PA were measured in identical conditions at schools at the baseline (T1) and the end of the eighth week (T2). We employed a cross-lagged model approach to understand the bidirectional relationships between MSC, PC, and PA. Results: The results showed that T1 MSC significantly predicted T2 MSC (p < 0.01) and T1 MSC significantly predicted T2 PA only in girls (p = 0.03). Additionally, a cross-lagged effect of T1 MSC and T2 PC was only observed in boys (p = 0.03). Lastly, a significant association for T1 moderate-to-vigorous physical activity (MVPA) and T2 PC was only observed in girls (p = 0.04). Conclusions: Bidirectional relationships between the variables were not observed in preschoolers. However, significant gender differences were observed in each cross-lagged model.

Development and reliability of the Physical Literacy in Children Questionnaire (PL-C Quest): a self-report scale to assess children’s perceived physical literacy

Objective: In 2017 Sport Australia led the development of a physical literacy definition for Australia. The associated Australian Physical Literacy Framework (APLF) (released in 2019) includes 30 elements within four domains (physical - 12 items, psychological - 7 items, social - 4 items and cognitive - 7 items), e.g. motivation is an element in the psychological domain and tactics is an element within the cognitive domain. It is important now to develop robust measurements which align with the APLF. This paper will: 1) briefly outline development of the Physical Literacy in Children Questionnaire (PL-C Quest) – a pictorial scale designed in 2020 to measure children’s perceived physical literacy and 2) report on reliability values for the PL-C Quest. Methods: 1) Scale development: Qualitative research methods were used to determine a) a gender and race neutral character that appealed to children and b) how children understood the images and wording designed for the PL-C Quest. Input was provided by an expert reference committee and 17 children aged 4 to 12 years. 2) In sample 2, 60 children (and their parents) aged from 6.9 to 12.4 years (mean = 9.7 years, SD = 1.5) were recruited via social media to conduct reliability analyses. Parents reported on demographics and children completed the PL-C Quest online twice. Test retest (mixed two way models for consistency) and internal consistency (polychloric alphas) were conducted. Results: 1) Children preferred a ‘bunny’ character. Children interpreted most images as intended with some images redrawn based on feedback. 2) Parents were largely University educated (n = 52, 86.7%) and spoke English at home (n = 55, 91.7%). Children completed the survey twice 15.8 days apart (SD = 3.2). Test-retest values for the complete scale were good (ICC = 0.83) and domain values ranged from adequate to good [social: ICC = 0.67, cognitive: ICC= 0.74, psychological: ICC = 0.77 and physical: ICC = 0.80]. Internal consistency was adequate to good for the cognitive (T1=0.60, T2=0.71), social (T1=0.63, T2=0.70), and physical (T1=0.76, T2 =0.83) domains and lower for the psychological domain (T1=0.53, T2=0.47). Discussion: The PL-C Quest is the first instrument designed to comprehensively measure young children’s perceived physical literacy. The reliability results are promising with the next step construct validity testing in larger diverse samples. The PL-C Quest can be used with children in education and sport settings to understand how to assist children to develop their physical literacy potential. No conflicts of interest to declare.

Aquatic Physical Literacy: The Effectiveness of Applied Pedagogy on Parents' and Children's Perceptions of Aquatic Motor Competence.

The goal of swimming school during early school age is to promote physical literacy. According to linear or non-linear pedagogy, a linear or non-linear approach teaching style can be used. The aim of our study was to investigate whether a different teaching methodology, as in using a teacher-centered approach (linear pedagogy), or a student-centered approach (non-linear pedagogy), could differently influence the perceptions of aquatic activity of children and parents. Parents of 100 children (53 females and 47 males, age 5.9 ± 0.3 years old) participating in the study were previously interviewed to ascertain their expectations regarding the swimming course. Participants were in a medium-high social context. Subsequently, considering the data of the incoming aquatic motor competence’s tests, children were divided into a linear (LI) and non-linear (NL) pedagogy group. A total of 4 instructors were enrolled. Upon completing the swimming course, the aquatic motor competence’s test was repeated, a pictorial scale of perceived motor competence was administered, and a questionnaire regarding the course was proposed to children’s parents. Physical development and learn to swim resulted two of the most important reasons leading parents to choose swimming courses. LI achieved greater progress than the NL in actual motor competence (A.M.C.), while NL perceived a higher aquatic motor competence (P.M.C.) in 7 out of 10 items of the pictorial scale. Parents of children in LI, gave greater importance to the teacher’s role, while NL’s parents pointed the acquisition of children’s abilities as pivotal. In conclusion, NL approach was more appreciated by children, while LI method was more rewarding for parents because initial expectations were satisfied.

What factors relate to three profiles of perception of motor competence in young children?

ABSTRACT The study aims were to 1) examine profiles of perception of motor competence (PMC) in relation to actual motor competence (AMC), i.e. under-estimators (UEs), realistic estimators (REs) and over-estimators (OEs) and 2) investigate associations between the profiles and selected socioecological factors at the individual, family and environmental levels. PMC (Pictorial Scale of Perceived Movement Skill Competence) and AMC (Test of Gross Motor Development-Third Edition) were administered to a representative sample of children from 37 childcare centres in Finland (n=441;6.2±0.6yrs;52% boys). Socioecological factors were investigated using a parental questionnaire. The three profiles were formed based on age- and gender-adjusted PMC and AMC z-scores. Multinomial logistic regression showed that OEs (n=81; p=0.04) tended to be younger than REs (n=306; p=0.04) and UEs (n=54; p=0.03). Parents of OEs reported more child health and developmental issues than parents of REs (p=0.03). Parents of UEs self-reported providing more support for physical activity than parents’ of REs (p=0.04). REs tended to live in denser population areas than UEs (n=54; p=0.03). Whilst PMC profiles revealed some socioecological differences, future research needs to focus on a broader range of potential correlates and untangle methodological analyses challenges to deepen the knowledge about PMC development in children.

Relationship Between Actual and Perceived Locomotor and Ball Skills Competence Among Children: A Person–Centered Approach

ABSTRACT This study examined whether profiles varying in actual and perceived locomotor and ball skill competencies would be identified and whether these profiles would differ in relation to children’s characteristics. Participants were 127 (70 boys; 57 girls) French-speaking Canadian children (5–11 years). Actual and perceived motor competencies were, respectively, measured using the Test of Gross Motor Development – Third version and the pictorial scale of Perceived Movement Skill Competence. Latent profile analyses revealed four profiles: (1) Non-Alignment: Devaluation (children underestimated their slightly below average competencies; 17.9%); (2) Non-Alignment: Overestimation (children overestimated their slightly below average competencies; 24.7%); (3) Non-Alignment: Underestimation (children slightly underestimated their above average competencies; 24.9%); (4) Alignment: Low Competence (children displayed accurate but slightly below average competencies; 32.5%). Girls were more likely to correspond to profiles 1 and 4, older children and children more frequently involved in physical activity/sport practice were more likely to correspond to profile 3, and younger children were more likely to correspond to profile 2. These results emphasise the importance of considering the alignment between perceived and actual motor competencies. They also indicate that age and physical activity/sport practice were associated with higher competencies, whereas girls and younger children were associated with lower competencies.

P037 Indigenous Australians’ conceptualisation of sleep health differs from western interpretations

Abstract Purpose Despite a significant burden of poor sleep, Aboriginal and Torres Strait Islander peoples’ (Indigenous Australians) conceptualisation of sleep health is poorly understood. This research explored Indigenous Australians’ understanding and interpretation of sleep health and how that affects their health. Methods Indigenous people from remote Queensland were invited to participate in focus group discussions exploring their understanding of sleep health, the link between dreaming and sleep, and perceived implications of poor sleep. Participants were also asked to complete an adapted pictorial Epworth Sleepiness Scale (ESS). Descriptive statistics were used to summarise ESS data and participants’ demographic data. Thematic analysis was used to analyse focus group data. Results A total of 29 Indigenous Australians (82% females), median age 39 years (Interquartile range 26–51 years) from various geographical areas within North West Queensland participated in focus group discussions (n=6). The following themes emerged from the data: interconnection among sleep, emotional and physical health; challenges and successes in obtaining healthy sleep; the impact of dreams on waking life; and lack of support from health services in managing sleep issues. Scores from the modified pictorial scale indicate 24% of the participants had excessive daytime sleepiness (ESS score&amp;gt;10 points). Conclusion Indigenous Australians’ conceptualisation of sleep health is different from the western interpretation of sleep health. In particular, the connection between dreams and sleep is not adequately captured in current tools and resources to promote sleep health. This will limit effective prevention and management of sleep issues in Indigenous communities.

A pictorial disease assessment scale for assessing wheat stripe rust at adult plant growth stage

A pictorial disease assessment scale for assessing wheat stripe rust at adult plant growth stage

Measuring Cognitive Load: Are There More Valid Alternatives to Likert Rating Scales?

Cognitive load researchers have used varying subjective techniques based on rating scales to quantify experienced cognitive load. Although it is generally assumed that subjects can introspect on their cognitive processes and have no difficulty in assigning numerical values to the imposed cognitive load, little is known about how visual characteristics of the rating scales influence the validity of the cognitive load measure. In this study we look at validity of four subjective rating scales (within groups) differing in visual appearance by participants rating perceived difficulty and invested mental effort in response to working on simple and complex weekday problems. We used two numerical scales (the nine-point Likert scale most often used in Cognitive load theory research and a Visual Analogue Scale ranging between 0–100%) and two pictorial scales (a scale consisting of emoticons ranging from a relaxed blue-colored face to a stressed red-colored face and an “embodied” scale picturing nine depicted weights from 1–9 kg). Results suggest that numerical scales better reflect cognitive processes underlying complex problem solving while pictorial scales Underlying simple problem solving. This study adds to the discussion on the challenges to quantify cognitive load through various measurement methods and whether subtleties in measurements could influence research findings.

The effects of parenting styles and parental positivity on preschoolers’ self‐perception

AbstractSelf‐esteem has implications for a wide variety of psychological problems. This study sought to determine whether parenting practices at ages 3 and 4 years contributed to 5‐year‐old children's self‐perception, a precursor to later self‐esteem. Data came from a longitudinal study in which preschool twin or triplet children were tested within a month of their birthdays; complete data were available for 263 children tested at ages 4 and 5 years and for 211 children tested at ages 3 and 5 years. As part of testing at ages 3 and 4, children and parents engaged in a puzzle task for 10 min; their behaviors were coded by trained raters. Parenting variables of verbal warmth, positive affect, permissive discipline, and sensitivity were coded. At age 5, children's self‐perception was assessed using the Pictorial Scale of Perceived Competence and Social Acceptance for Young Children. Results showed that parental positive affect and sensitivity at age 4 predicted increased maternal acceptance at age 5, and permissive discipline predicted decreased peer acceptance scores for girls, but not boys. Additionally, parental verbal warmth at age 3 predicted higher peer acceptance scores at age 5. Finally, boys who experienced increases in parent positive affect from ages 3 to 4 showed higher peer acceptance scores at age 5. This study provides evidence that parenting is an important factor in the development of preschool children's self‐perception.

Bidirectional Relationships among Children's Perceived Competence, Motor Skill Competence, Physical Activity, and Cardiorespiratory Fitness across One School Year.

Purpose The bidirectional associations among children's motor skill competence (MSC), perceived competence (PC), physical activity (PA), and cardiorespiratory fitness (CRF) over time remain unanswered. This study is aimed at discerning the bidirectional relationships among elementary school children's MSC, PC, PA and, CRF over the course of one school year. Methods A total of 261 second and third grade children (127 boys, 134 girls; meanage = 8.27 years; BMI = 18.22 ± 3.71) were recruited from two Texas elementary schools. Approximately 73.56% of participants were White American. Children's baseline data were assessed in September/October in 2012 (Time1), and identical assessments were conducted in April/May in 2013 (Time2). MSC was assessed using product-oriented skill tests (e.g., throw, kick, and jump). PC was assessed via the Pictorial Scale of Perceived Competence for Children. Minutes spent in moderate-to-vigorous PA (MVPA) was assessed using ActiGraph GT3X+ accelerometers for five days, and CRF was assessed by the PACER test. Six age- and body mass index-adjusted cross-lagged panel models were used to test the relationships between the variables. Results We observed that T1 MSC significantly predicted T2 MSC (β = 0.59; p < 0.01), T2 CRF (β = 0.28; p < 0.01), and T2 MVPA (β = 0.18; p < 0.01). Children's CRF was a positive predictor for T2 CRF (β = 0.56; p < 0.01) and T2 MSC (β = 0.13; p < 0.05) Additionally, T1 MVPA significantly predicted T2 MVPA (β = 0.30; p < 0.01) and T2 PC (β = −0.14; p < 0.05). Conclusion Findings suggested a fully bidirectional relationship between elementary children's MSC and CRF. Other bidirectional relationships among the variables were only partially supported. Educators and health professionals need to emphasize the importance of developing both MSC and CRF to maintain physical health over time.

Is It Possible to Measure the Role of the Bystander and the Victim of Bullying in Children? Construct Validity of Two Brief Pictorial Scales With IRT and CFA Models.

The study's objective was to develop and validate the psychometric properties of two brief pictorial scales to evaluate the roles of bystanders and victims of bullying. A sample of 910 students was considered (49.6%, boys; 50.4%, girls) between the ages of 7 and 13 (M = 10, SD = 1.4). Both instruments present nine pictorial items representing two dimensions: physical bullying (items 1 to 4) and psychological bullying (items 5 to 9). An additional measure of anxiety was used to assess convergent validity. The Confirmatory Factorial Analysis shows that the two-dimensional oblique model, physical bullying and psychological bullying, presents a better fit to the bystander scale data (RMSEA = .040; CFI = .984; SRMR = .033) and in the victim scale (RMSEA = .051; CFI = .978; SRMR = .040) in comparison to other competitor models. From the perspective of the Item Response Theory (IRT), it was found that the items adequately discriminate the levels of the latent variable; therefore, items 1 (physical bullying) and 7 (psychological bullying) are the most accurate on the bystander scale, and items 3 (physical bullying) and 7 (psychological bullying), on the victim scale. It was also found that the degree of difficulty on both scales is lower for the psychological bullying dimension than for the physical bullying dimension. Both instruments demonstrated good psychometric properties; therefore, they can detect school bullying in classrooms.