A Primer on the One-Parameter Rasch Model

McCamey, Randy

doi:10.3844/ajebasp.2014.159.163

Cited by 8 publications

(5 citation statements)

References 12 publications

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“…24,34 Neurodevelopmental ability was computed using item response theory, a psychometric model of a trade-off between test taker's ability and the difficulty of the test. 35 The Rasch model, a 1-parameter logistic model to determine an infant's ability based on their responses to multiple test items, was used. 35 A standardized (mean zero, unit SD) score was determined for each infant for each MDAT developmental domain and an overall developmental score.…”

Section: Discussionmentioning

confidence: 99%

“…35 The Rasch model, a 1-parameter logistic model to determine an infant's ability based on their responses to multiple test items, was used. 35 A standardized (mean zero, unit SD) score was determined for each infant for each MDAT developmental domain and an overall developmental score. This allowed ranking of individuals by neurodevelopmental ability within the cohort.…”

Section: Methodsmentioning

confidence: 99%

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Growth Faltering and Developmental Delay in HIV-Exposed Uninfected Ugandan Infants: A Prospective Cohort Study

Sirajee

Conroy

Namasopo

et al. 2021

JAIDS Journal of Acquired Immune Deficiency Syndromes

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Background: HIV-exposed but uninfected (HEU) infants are at increased risk of impaired early linear growth and cognitive development. We examined associations between prenatal and postnatal growth and subsequent neurodevelopment in Ugandan HEU infants, hypothesizing that early insults may explain alterations in both somatic growth and brain development. Methods:We prospectively followed a cohort of HEU infants from birth to 18 months of age, and measured length/height, weight, head, and arm circumference longitudinally. The Malawi Development Assessment Tool (MDAT, 12 and 18 months) and the Color Object Association Test (18 months) were used for developmental assessments.Results: Among 170 HEU infants, the prevalence of low-birth weight and failure to thrive was 7.6% and 37%, respectively. HEU infants had MDAT scores that were similar to the reference population. The mean (SD) score on the Color Object Association Test was 5.5 (3.1) compared with 6.9 (5.3) in developmentally normal children. Developmental ability at age 18 months showed strong cross-sectional correlation with weight-for-age (r = 0.36, P , 0.0001), length/height-for-age (r = 0.41, P , 0.0001), head circumference-for-age (r = 0.26, P = 0.0011), and mid-upper arm circumference-for-age (r = 0.34, P = 0.0014). There was a statistically significant correlation between birth weight and MDAT z-score at 18 months (r = 0.20, P = 0.010). Failure to thrive was associated with lower MDAT z-score [median 20.13 (IQR 20.75 to +0.14) versus +0.14 (IQR 20.44 to +0.63), P = 0.042]. Conclusion:Growth faltering in HEU infants was associated with lower attainment of developmental milestones at age 18 months. Our findings point to a simple screening method for identifying HEU infants at risk for developmental intervention.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Growth Faltering and Developmental Delay in HIV-Exposed Uninfected Ugandan Infants: A Prospective Cohort Study

Sirajee

Conroy

Namasopo

et al. 2021

JAIDS Journal of Acquired Immune Deficiency Syndromes

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“…Third, calibration scaling analysis. Finally, the dimensionality is also used to verify both content and construct validity [26,19,42,17,38]. Table 2 showed that the Item Polarity and Item Fit Analysis for Economic Values Scale.…”

Section: Validity and Reliability Using Rasch Modelmentioning

confidence: 99%

Constructing a Scale for Development of Economic Values among Gifted High ‎School Students at Al-Ahsa Region‎

AlAli¹

2021

ujer

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Values have an important role in guiding the thinking and behavior of the individual. The society is suffering from many economic problems, as it is living in a difficult situation. Since students are part of society, so they have an important role in building, progressing and developing their society. Therefore, this study aims to construct a scale of economic values for gifted high school students at Al-Ahsa region. The developed scale covered four concepts including the value of rationalization of consumption (R), the value of work (W), value of respect public property ownership (O) and value of respect workers and professionals and their appreciation (A). The validity and reliability of the 55 items were tested using Raasch Model analysis. The study sample consisted of (310) respondents. The findings showed that there were statistically significant differences in the scale based on gender in favor of female. While there were no statistically significant differences based on academic branch, academic level and interaction between variables demographic of the study. Finally, the study recommended that adoption of the economic values scale in the region for gifted high school students from educators and interested in the educational process. In addition, the study promotes the economic values of students and implies economic concepts and values in all curricula.

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“…Rasch developed a special model, to estimate the abilities of individuals through their responses on the test items (McCamey, 2014). Rasch model helps to predict probability of the correct answer on a test based on an estimate items two variables which are difficulty of item and ability of the individual through joint continuity between them (De Battisti, Salini, & Crescentini , 2004).…”

Section: Rasch Modelmentioning

confidence: 99%

Psychometric Properties of Social Perception of Mathematics:‎‎ Rasch Model Analysis

Ali¹,

Shehab²

2020

IES

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Social perception is an evaluation process, which uses any information available &lrm;in order to form impressions, &lrm;understanding, and judgments about others. It is also &lrm;considered as an essential element of social skills. This study &lrm;aims to examine the psychometric analysis of students’ social perceptions of mathematics using Rasch model &lrm;analysis.&lrm; This study uses a quantitative survey approach. The sample comprised 40 first year students at King Faisal University&lrm;. The Rasch model is used because it is considered an effective tool for assessing constructs’ validity and reliability of the instrument. It also generalizes results and inferential studies. The developed questionnaire consists of six dimensions. Every dimension consists of six items. They are verifying the validity based on the Rasch model using item polarity, item fit, and dimensionality. In addition, the reliability was verified using person and item reliability, and item and person separation. The results of the Rasch model analysis show that the items of social perception of mathematics SPoM fit the model appropriately.

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A Primer on the One-Parameter Rasch Model

Cited by 8 publications

References 12 publications

Growth Faltering and Developmental Delay in HIV-Exposed Uninfected Ugandan Infants: A Prospective Cohort Study

Growth Faltering and Developmental Delay in HIV-Exposed Uninfected Ugandan Infants: A Prospective Cohort Study

Constructing a Scale for Development of Economic Values among Gifted High ‎School Students at Al-Ahsa Region‎

Psychometric Properties of Social Perception of Mathematics:‎‎ Rasch Model Analysis

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