Percentile Norms Research Articles

The Development of Normative Fitness Data and Analyzing the Relationships Between 20MSFT and 2.4-km Run Performance in Australian Police Recruits.

Campbell, P, Maupin, D, Lockie, RG, Dawes, JJ, Simas, V, Canetti, E, Schram, B, and Orr, R. The development of normative fitness data and analyzing the relationships between 20MSFT and 2.4-km run performance in Australian police recruits. J Strength Cond Res 38(11): 1951-1958, 2024-Aerobic fitness testing plays a significant role in the academy training of law enforcement recruits. There is a lack of normative data for law enforcement recruits and substantial interchangeability for choice of field-based aerobic tests. Therefore, this study aimed to develop normative percentile rankings for the 20-m multistage fitness tests (20MSFT) and 2.4-km run specific to law enforcement recruits; and to analyze the relationship between the 2 tests by linear regression. Data from 5 cohorts of law enforcement recruits completing 20MSFT ( n = 1,536) and 2.4-km run ( n = 1,499) testing during basic training at an Australian Police Academy were retrospectively analyzed. Percentile ranks were calculated (20th, 40th, 50th, 60th, 80th, and 99th) based on the number of shuttles completed and time (seconds) to complete the 2.4-km run. Results were split by sex and age (i.e., <20 years, 20-29 years, 30-39 years, and 40-49 years). Linear regression analyzed the relationship between the 20MSFT to the 2.4-km run (using both seconds and km·h -1 ), producing predictive equations to translate scores between the 2 assessments. These data presented the first detailed normative values by age and sex for Australian law enforcement recruits. Furthermore, the results demonstrated regression models could explain 65-74% of the variance observed ( r2 = 0.649-0.741) between 20MSFT performance and 2.4-km run performance. This study's findings allow for normative performance for the purpose of benchmarking fitness, setting performance goal, and rehabilitation from injury. In addition, a valid conversion through a linear regression affords cross-agency comparisons and temporal changes in test selection/recruit cohorts.

Medication Literacy Test for Older Adults: psychometric analysis and standardization of the new instrument.

Low medication literacy is prevalent among older adults and is associated with adverse drug events. The Medication Literacy Test for Older Adults (TELUMI) was developed and content validated in a previously published study. To evaluate the psychometric properties and provide norms for TELUMI scores. This was a cross-sectional methodological study with older adults selected from the community and from two outpatient services. Descriptive item-analysis, exploratory factor analysis (EFA), item response theory (IRT), reliability, and validity analysis with schooling and health literacy were performed to test the psychometric properties of the TELUMI. The classification of the TELUMI scores was performed using percentile norms. A total of 344 participants, with a mean age of 68.7years (standard deviation = 6.7), were included; most were female (66.6%), black/brown (61.8%), had low schooling level (60.2%) and low income (55.2%). The EFA pointed to the one-dimensional structure of TELUMI. A three-parameter logistic model was adopted for IRT. All items had an adequate difficulty index. One item had discrimination < 0.65, and three items had an unacceptable guessing index (< 0.35) and were excluded. The 29-item version of TELUMI had excellent internal consistency (KR20 = 0.89). There was a positive and strong association between TELUMI scores and health literacy and education level. The scores were classified as inadequate medication literacy (≤ 10.0 points), medium medication literacy (11-20 points), and adequate medication literacy (≥ 21 points). The results suggest that the 29-item version of TELUMI is psychometrically adequate for measuring medication literacy in older adults.

Cognitive Distortion Scale for Bangladesh: Development and Properties

The purpose of the study was to develop a scale for assessing cognitive distortions in Bangladesh and establishing psychometric properties for Bangladeshi population. The scale was named as Bangladesh Cognitive Distortion Scale (BCDS). Items were constructed through three stages of intensive expert evaluation where 128 respondents participated and both item analysis and factor analysis were undertaken. Finalized BCDS with 39 items was administered to 478 respondents to calculate its psychometric properties. Concurrent validity of BCDS was found 0.828 by calculating correlation between the score of BCDS and clinician’s subjective rating. Predictive validity considering anxiety and depression scale was found 0.756 and 0.841, respectively. Convergent validity (0.670) was confirmed through the correlation between the DAS and BCDS and divergent validity was established by the discriminate value (F=649.564, α&lt;0.01) of clinical and non-clinical groups. Internal consistency reliability of BCDS (Cronbach Alpha- 0.962 and test-retest- 0.890) was found very high. The cut-off point for measuring cognitive distortion by BCDS was found 56 with sensitivity 87% and specificity 88%. According to the percentile norm, total score 56 to 72, 73 to 91, 92 to 109, 110 and above represents the mild, moderate, severe, and profound levels of cognitive distortions respectively. BCDS not only will help both clinicians and researchers to assess cognitive distortions within a short time but also could be used as a valid and reliable outcome measure in cognitive behavior therapy. Dhaka Univ. J. Biol. Sci. 33(2): 97-109, 2024 (July)

Diagnostic criteria of anterior segment swept-source optical coherence tomography to detect gonioscopic angle closure

AimsTo compare the diagnostic performance of 360° anterior segment optical coherence tomography assessment by applying normative percentile cut-offs versus iris trabecular contact (ITC) for detecting gonioscopic angle closure.MethodsIn this multicentre...

German adult population norm values of the short Warwick Edinburgh mental well-being scale (SWEMWBS)

PurposeThe Warwick-Edinburgh Mental Well-Being Scale represents an internationally established inventory to assess population mental well-being. Particularly the short form (SWEMWBS) is recommended for use in Mental Health Surveillance. In the present study, we present normative data of the SWEMWBS for the German adult population.MethodsData from the telephone survey German Health Update (GEDA) in 2022 representative of the German adult population (48.9% women, 18–98 years) was processed to estimate SWEMWBS percentile norm values, T-values, z-values and internationally comparable logit-transformed raw scores for the total sample (N = 5,606) as well as stratified by sex, age group and sex with age group combinations.ResultsThe average mental well-being was comparable to that of other European countries at M = 27.3 (SD = 4.0; logit-transformed: M = 24.79, SD = 3.73). To provide a benchmark, the cut off for low well-being was set at the 15th percentile (raw score: 23; logit-transformed: 20.73), for high well-being at the 85th percentile (raw score: 32; logit-transformed: 29.31).ConclusionThe present study provides SWEMWBS norm values for the German adult population. The normative data can be used for national and international comparisons on a population level to initiate, plan and evaluate mental well-being promotion and prevention measures.

Development of Measurement Instruments for Teachers’ Lifelong Learning Mindset, Learning Habits and Self-Directed Learning

Lifelong learning is a crucial process that contributes to the continuous professional advancement opportunities for teachers. To promote teachers as lifelong learners, it is essential to leverage comprehensive insights into key mobilizing factors for lifelong learning, including a Lifelong Learning Mindset, Learning Habits, and Self-Directed Learning. This research aims to 1) develop measurement instruments for teachers’ Lifelong Learning Mindset, Learning Habits, and Self-Directed Learning, and to 2) examine the quality of the measurement instruments, including the establishment of norms for all three variables. The research sample consisted of 943 elementary school teachers, selected using stratified random sampling. The measurement instrument consisted of a questionnaire containing 35 items each utilizing a 5-point rating scale. The research findings show that item content validity ratio (CVR) values for each of the instrument subscales ranged between .71 and 1.00, while the content validity index (S-CVI) value for the entire scale was .97. The internal consistency reliability values for the individual variable subscales ranged from .925 to .963, while the construct validity using Confirmatory Factor Analysis (CFA) as measured by the Mplus program showed that the measurement model fit the empirical data at the .05 significance level. This study also established percentile norms for the developed instruments.

Distribution of Normative Percentiles of Liver Stiffness Measurement Using Ultrasound Shear Wave Elastography in an Adult Asian Indian Population

Abstract Objective The aim of this study was to determine the normative percentiles for liver stiffness measurement (LSM) using shear wave elastography in an adult Asian Indian population as part of the preventive radiology initiative of the Indian Radiological and Imaging Association (IRIA). Methods LSMs were ascertained by two-dimensional (2D) shear wave elastography using the Mindray Resona series of ultrasound machines. The image quality was assessed using the motion stability index (M-STB) and reliability (RLB) map. Ten acquisitions were documented, and an interquartile range-to-median (IQR/M) ratio ≤30% kilopascal (kPa) units was considered a good-quality measurement. A subgroup of the study population without comorbidities was chosen to derive the normative percentile distribution of LSM using a generalized least squares multivariable fractional polynomial regression model that adjusted for sex and body mass index (BMI). The effectiveness of the estimated percentiles was assessed on the entire study population using the greater than 90th percentile value of the LSM as the cutoff for abnormality. Results The study included 852 people who underwent shear wave elastography from June 2022 to July 2023. The magnitude of compensated advanced chronic liver disease (cACLD) and clinically significant portal hypertension (CSPH) was 6.81% (95% confidence interval [CI]: 5.30–8.7) and 4.91% (95% CI: 3.67–6.60), respectively. The normative percentiles were estimated from 282 persons without associated comorbidity and risk factors. The mean age (standard deviation [SD]) of the normal individuals was 40.90 ± 12.92 years, and 210 (71.47%) were males. The mean age (SD) of the 570 persons excluded from the normative percentiles analysis was 47.94 (12.49) years and 72.11% were males. The sex- and BMI-adjusted age-specific 90th percentiles of LSM were 8.76, 8.78, 8.96, 8.97, 9.25, and 9.45 kPa for 18 to 20, 21 to 30, 31 to 40, 41 to 50, 51 to 60, and 61 to 70 years, respectively. Conclusion The sex- and BMI-adjusted age-specific 90th percentiles for LSM using shear wave elastography in Asian Indian adults are almost similar to the greater than 9 kPa cutoff proposed by the Society of Radiologists in Ultrasound Liver Elastography Consensus Statement guidelines to discriminate cACLD and CSPH from normal individuals.

Investigation of Underlying Association between Anthropometric and Cardiorespiratory Fitness Markers among Overweight and Obese Adolescents in Canada.

Adolescents who experience overweight or obesity commonly persist in these conditions into adulthood, thereby elevating their vulnerability to health issues. The focus of this study is on health risk markers such as body mass index (BMI), waist circumference (WC), waist-to-height ratio (WHtR), body surface area (BSA), and cardiorespiratory fitness (CRF). The objectives include updating normative values for BMI, WC, WHtR, and BSA in Canadian adolescents, establishing cardiometabolic risk zones, and developing a composite score considering both anthropometric and CRF markers. Involving 1864 adolescents, the study used the LMS method to generate percentile norms, stratified by age and sex. Cardiometabolic risk zones were established for each marker based on Z-scores, and a composite score was created. An increase in WC of 5.8 and 7.4 cm for boys and girls, respectively, was observed since 1981. Forward multiple regression analyses were conducted to assess the robustness and validity of the proposed model. The results indicated that the model explained nearly 90% (R2 = 0.890) of the common variance between the composite score and the retained independent variables. Moreover, the model demonstrated a mean absolute error (MAE) of approximately 6 percentiles, confirming its high precision. Furthermore, these analyses yielded key thresholds for identifying adolescents at risk: the 70th percentile for high cardiometabolic risk and the 85th percentile for very-high risk. Individually, WC or WHtR seem to be better markers for evaluating cardiometabolic risk than BMI during adolescence. However, CRF showed comparable importance to anthropometric markers in determining cardiometabolic risk. The simultaneous inclusion of anthropometric and CRF markers provides a better picture of the global cardiometabolic risk in adolescents.

Normative percentile ranking best reveals sensorimotor impairments of postural sway in type 2 diabetes

Background Type 2 Diabetes (T2D) is associated with a higher magnitude of static postural sway. This investigation compared three statistical methods to explore the role of sensory modalities contributions to posture in T2D. Research design and methods Two groups were evaluated in this study ( n = 20); T2D group - 10 participants with T2D (age 54.6 ± 11.09 years), comparison group - 10 age/sex matched healthy participants (age 53.18 ± 9.89 years). Postural sway data was collected using the modified Clinical Test of Sensory Integration in Balance (mCTSIB), consisting of four 20-s trials on a balance plate with manipulations of vision and support surface to target the contributions of proprioceptive, visual, and vestibular senses. Scores were assessed by group wise analysis of path length, group wise analysis of percentile rank, and distribution of percentile rank. Results The two-way ANOVA used for the group wise analysis of path length and percentile rank showed significant differences between groups scores ( p &lt; .05), but no significant interactions between group and condition. The frequency distribution of percentile rank of the T2D group revealed unimodal distributions for all conditions except for vestibular, which was found to have the highest and lowest percentile ranks of any condition. Conclusion The results show that the individualized normative analysis revealed aspects of individual impairments that would have otherwise been missed using a group-wise method. Though limited, our findings also suggest that impairments to the vestibular system may be more pronounced but less frequent compared to proprioceptive and visual impairments.

Percentile norms for the 10x5-metre shuttle run test in a large sample of primary school-aged children: A cross-sectional study

Purpose: In the preceding two decades, comprehensive documentation pertaining to reference standards of health-related physical fitness of school-aged children has emerged. However, prevailing research has mainly concentrated on the establishment of muscular and cardiorespiratory metrics, neglecting certain physical fitness components (notably, motor fitness) for which reference standards have yet to be formulated. Therefore, the main objective of this study was to construct reference standards for the 10×5-meters shuttle run test for Croatian primary school-aged children. Methods: In this cross-sectional study, the participants were 1.512 healthy children and adolescents residing in the urban area of the city of Zagreb, Croatia (mean age: 9.7 years, range 7-14 years; mean height: 151.0 cm, range 138-173 cm; mean weight: 45.1 kg, range 32-60 kg; 52.5% girls). Sex- and age-specific variations, as well as effect sizes (ES), were investigated through the application of analysis of variance within the study framework for the 10×5-meters shuttle run test. Results: he median scores for the 10×5-meters shuttle run test were 22.1 seconds for boys and 23.2 seconds for girls. Sex- and age-specific analyses revealed statistically significant differences, indicating that boys achieved better results compared to girls (F1,15 = 36.06, P&lt; .001; ES = .33). Additionally, older boys and girls outperforming their younger counterparts (F1,15 = 30.32, P&lt; .001; ES = .45). Finally, the interaction between sex and age remained significant (F1,15 = 2.50, P= .015; ES = .24), underscoring that older boys were faster in completing the task when compared to individuals of other sex and age groups. Conclusions: This study revealed discernible sex- and age-related disparities in the 10×5-meters shuttle run test among primary school children. These findings imply that chronologically younger children, particularly younger girls, achieved lower scores. Consequently, these findings underscore the necessity of targeted interventions to enhance speed and coordination/agility abilities in the aforementioned demographic subgroups

Construction of Attitude Scale: Attitude of Schoolteachers Towards Teaching Profession

The progress of the nation is based on the competencies of the citizens, and the overall development of the person depends on the effectiveness of the educational system implemented in the country. The teacher is a key factor in the implementation of educational programs. Without a favorable attitude toward the teaching profession, teachers cannot do well in the teaching profession. Regarding this context, this study was conducted to construct an attitude scale to measure the attitude of schoolteachers towards the teaching profession. Steps of standardization of the test were adopted to construct a reliable and valid tool. Piloting was made in the Indo-Nepalese context. A quantitative research design was used in this study. A draft of 50 statements was designed, and 40 were selected on the basis of expert judgment. A sample of 374 schoolteachers from five districts of Nepal and India was selected using a random sampling technique. Eight statements were rejected based on item analysis and respondents' suggestions. A standardized attitude scale was developed comprising 32 statements, which were again categorized into eight factors on the basis of factor analysis. Various reliability coefficients ranging from .80 to .87 were found. For interpretation of the results, z-score and percentile norms were developed. This test will be beneficial to researchers who are interested in identifying the attitudes of schoolteachers in the Indo-Nepalese context.

Whole Brain and Corpus Callosum Fractional Anisotropy Differences in Patients with Cognitive Impairment.

Diffusion tensor imaging (DTI) is an MRI analysis method that could help assess cognitive impairment (CI) in the ageing population more accurately. In this research, we evaluated fractional anisotropy (FA) of whole brain (WB) and corpus callosum (CC) in patients with normal cognition (NC), mild cognitive impairment (MCI), and moderate/severe cognitive impairment (SCI). In total, 41 participants were included in a cross-sectional study and divided into groups based on Montreal Cognitive Assessment (MoCA) scores (NC group, nine participants, MCI group, sixteen participants, and SCI group, sixteen participants). All participants underwent an MRI examination that included a DTI sequence. FA values between the groups were assessed by analysing FA value and age normative percentile. We did not find statistically significant differences between the groups when analysing CC FA values. Both approaches showed statistically significant differences in WB FA values between the MCI-SCI and MCI-NC groups, where the MCI group participants showed the highest mean FA and highest mean FA normative percentile results in WB.

Fat oxidation rates and cardiorespiratory responses during exercise in different subject populations with post-acute sequelae of SARS-CoV-2 infection: a comparison with normative percentile values.

Introduction: Post-acute sequelae of SARS-CoV-2 infection (PASC) presents a spectrum of symptoms following acute COVID-19, with exercise intolerance being a prevalent manifestation likely linked to disrupted oxygen metabolism and mitochondrial function. This study aims to assess maximal fat oxidation (MFO) and exercise intensity at MFO (FATmax) in distinct PASC subject groups and compare these findings with normative data. Methods: Eight male subjects with PASC were involved in this study. The participants were divided into two groups: "endurance-trained" subjects ( > 55mL/min/kg) and "recreationally active" subjects ( < 55mL/min/kg). Each subject performed a graded exercise test until maximal oxygen consumption () to measure fat oxidation. Subsequently, MFO was assessed, and FATmax was calculated as the ratio between at MFO and max. Results: The MFO and FATmax of "endurance-trained" subjects were 0.85, 0.89, 0.71, and 0.42 and 68%, 69%, 64%, and 53%, respectively. Three out of four subjects showed both MFO and FATmax values placed over the 80th percentile of normative data. The MFO and FATmax of "recreationally active" subjects were 0.34, 0.27, 0.35, and 0.38 and 47%, 39%, 43%, and 41%, respectively. All MFO and FATmax values of those subjects placed below the 20th percentile or between the 20th and 40th percentile. Discussion: Significant differences in MFO and FATmax values between 'endurance-trained' and "recreationally active" subjects suggest that specific endurance training, rather than simply an active lifestyle, may provide protective effects against alterations in mitochondrial function during exercise in subjects with PASC.

Cognitive “success” in the setting of performance validity test failure

ABSTRACT Background Although studies have shown unique variance contributions from performance invalidity, it is difficult to interpret the meaning of cognitive data in the setting of performance validity test (PVT) failure. The current study aimed to examine cognitive outcomes in this context. Method Two hundred and twenty-two veterans with a history of mild traumatic brain injury referred for clinical evaluation completed cognitive and performance validity measures. Standardized scores were characterized as Within Normal Limits (≥16th normative percentile) and Below Normal Limits (<16th percentile). Cognitive outcomes are examined across four commonly used PVTs. Self-reported employment and student status were used as indicators of “productivity” to assess potential functional differences related to lower cognitive performance. Results Among participants who performed in the invalid range on Test of Memory Malingering trial 1, Word Memory Test, Wechsler Adult Intelligence Scale-Fourth Edition Digit Span aged corrected scaled score, and the California Verbal Learning Test-Second Edition Forced Choice index, 16–88% earned broadly within normal limits scores across cognitive testing. Depending on which PVT measure was applied, the average number of cognitive performances below the 16th percentile ranged from 5 to 7 of 14 tasks. There were no differences in the total number of below normal limits performances on cognitive measures between “productive” and “non-productive” participants (T = 1.65, p = 1.00). Conclusions Results of the current study suggest that the range of within normal limits cognitive performance in the context of failed PVTs varies greatly. Importantly, our findings indicate that neurocognitive data may still provide important practical information regarding cognitive abilities, despite poor PVT outcomes. Further, given that rates of below normal limits cognitive performance did not differ among “productivity” groups, results have important implications for functional abilities and recommendations in a clinical setting.

Assessment of Adiposity And Proportional Weight of Coastal Area Adolescent Girls

The purpose of this study was to estimate the actual adiposity of the adolescent girls by using anthropometric measurements. For this, four hundred (400) adolescent girls age ranging from 11 through 15 years from twenty (20) schools of Bhagwanpur – II Block of Purba Medinipur district, a coastal area of the south Bengal. To assess the O-Scale adiposity the skin fold measurements consist of triceps, sub-scapular, supra iliac, abdominal, thigh and calf sites according to ISAK International Standards for Anthropometric Assessment (2011) using the CESCORF Innovare-3 Skin fold Calliper. Collected skin fold thickness in mm was used to assess the %-Fat, total fat in kg and O-scale adiposity by using standard equations. Again the O-scale adiposity was converted into stanine scores from percentile norms. Analysing the collected date it was found that the OScale adiposity is increased according to age except at the age of 12 years as the subjects entered in to menarche resulting in routine blood loss.

Comparison of Normative Percentiles of Brain Volume Obtained from NeuroQuant® vs. DeepBrain® in the Korean Population: Correlation with Cranial Shape.

This study aimed to compare the volume and normative percentiles of brain volumetry in the Korean population using quantitative brain volumetric MRI analysis tools NeuroQuant® (NQ) and DeepBrain® (DB), and to evaluate whether the differences in the normative percentiles of brain volumetry between the two tools is related to cranial shape. In this retrospective study, we analyzed the brain volume reports obtained from NQ and DB in 163 participants without gross structural brain abnormalities. We measured three-dimensional diameters to evaluate the cranial shape on T1-weighted images. Statistical analyses were performed using intra-class correlation coefficients and linear correlations. The mean normative percentiles of the thalamus (90.8 vs. 63.3 percentile), putamen (90.0 vs. 60.0 percentile), and parietal lobe (80.1 vs. 74.1 percentile) were larger in the NQ group than in the DB group, whereas that of the occipital lobe (18.4 vs. 68.5 percentile) was smaller in the NQ group than in the DB group. We found a significant correlation between the mean normative percentiles obtained from the NQ and cranial shape: the mean normative percentile of the occipital lobe increased with the anteroposterior diameter and decreased with the craniocaudal diameter. The mean normative percentiles obtained from NQ and DB differed significantly for many brain regions, and these differences may be related to cranial shape.

First body fat reference curves for Macedonian children and adolescents: the MAKFIT study.

Introduction: childhood obesity is a worldwide chief health problem. Along with body mass index, body fat percentile values can also be used to predict future cardiovascular and metabolic health risks. Objective: the study's aim is to define the percentile values and curves about the fat tissue percentage through which the childhood and adolescent overweight/obesity in the Republic of North Macedonia will be diagnosed. Methods: the research was conducted on a sample of 15,075 children and adolescents aged six to 14 years (7,627 boys and 7,448 girls). Body fat percentage was established by bioelectrical impedance. The LMS method was used in percentile values and curves' construction. Results: the boys' 50th percentile curve shows that the body fat percentage average value has a slight growth from seven to ten years of age, but after their 10th it begins to drop continuously until the age of 14 years. At the same time, the girls' body fat percentage average value increases continuously from six to 14 years of age. Conclusion: since body mass index cannot always establish body fat content, the direct assessment of body fat by bioelectrical impedance would be of great advantage for pediatric and clinical decisions. Therefore, the study provides referent percentile norms for the body fat percentage of healthy Macedonian children and adolescents. For this purpose, a practical and clinically applicable method was used. The obtained referent percentile norms can be useful in assessing overweight and obesity in Macedonian children and adolescents.

Propiedades psicométricas y normas percentilares de la Escala de Justicia Organizacional [EJOC] en trabajadores de la ciudad de Piura

The present investigation was carried out with the multiple objective of analyzing the psychometric properties of the Organizational Justice Scale (EJOC) and establishing its percentile norms for workers in the city of Piura. 268 workers from different companies in the city of Piura participated through a non-probabilistic convenience sampling. Among the results, it was reported that the 20 items that make up the scale have an adequate relationship with the main variable obtained by the descriptive statistical analysis. In addition, the internal structure of the instrument was analyzed through the four dimensions initially proposed, obtaining adequate fit and error indices: Chi= 217.571, df= 164, Chi/df= 0.03, CFI= .979, TLI= ,975, RMSEA= .035 and SRMR= .046. Likewise, a high reliability index through the Alpha Coefficient of Cronbach and McDonald whose values ranged between .776 and .959. Finally, the percentile norms were determined through three levels (low, medium and high) by dimensions and for the total scale. In this sense, it is concluded that the Colquitt EJOC is valid and reliable for workers from Piura.

A Czech version of the Overall Anxiety Severity and Impairment Scale (OASIS): standardization and psychometric properties

BackgroundThe Overall Anxiety Severity and Impairment Scale (OASIS) is a transdiagnostic measure that assesses severity and impairment associated with anxiety disorders. However, its psychometric properties were primarily examined in English-speaking or western countries. Therefore, this study aims to examine its psychometric parameters in the Czech Republic.MethodsA large representative sample (n = 1738), a clinical sample (n = 57) and a retest sample (n = 20) were used. In addition to the OASIS, conventional measures of anxiety, depression, personality traits, self-esteem, life satisfaction, and other scales were also administered. Moreover, we examined the latent structure, reliability, validity, and the cut-off score for the Reliable Change Index (RCI) and the Clinically Significant Change Index (CSI).ResultsHigher anxiety was found in females, religious non-church members, and students. The Confirmatory Factor Analysis supported the adequate fit of the unidimensional solution: x2(4) = 3.20; p < 0.525; CFI = 1.000; TLI = 1.000;RMSEA = 0, SRMR = 0. The measurement equivalence examination indicated that the OASIS measures anxiety invariantly between males and females. The validity of the OASIS was supported by positive associations with neuroticism, depression, perceived stress, guilt, shame, and the established anxiety measures. The internal consistency was excellent (Cronbach’s alpha = 0.96, McDonald’s omega = 0.96). The test-retest reliability was acceptable (r = 0.66). The cut-off for the CSI is 6 and the RCI is 5.32.ConclusionsThe OASIS represents a reliable and valid instrument for assessing anxiety in adults. Due to its shortness, excellent psychometric properties, and percentile norms, it is especially useful for short and accurate screening of anxiety and mapping therapeutic changes in clinical practice.

COGNITO (Computerized assessment of adult information processing): Normative scores for a rural Indian population from the SANSCOG study.

Neuropsychological assessments are inexpensive and efficient methods to understand the cognitive abilities of individuals in research studies and clinical settings. Normative scores for such measures are crucial in serving as a reference standard for identifying cognitively healthy and impaired individuals belonging to similar sociodemographic characteristics. Study subjects in rural India recruited into the Srinivaspura Aging, Neuro Senescence and Cognition (SANSCOG) study were administered the COGNITO battery of tests, which traverse cognitive domains of attention, memory, language, and visuospatial abilities. Percentile norms based on age and education stratification were derived for the above cohort. Percentile norms are commensurate with literacy levels in this population. The percentile scores for the cognitive tests show a decline for the individuals aged 75 years and above indicating lower cognitive functioning in this age group. This is the first-ever study reporting norms for diverse cognitive domains for illiterate, literate, low-literate individuals enrolled in a large-scale community-based cohort study in rural India.