Outfit MNSQ Research Articles

Rasch analysis of the perceptions of palliative care instrument (PPCI) in patients with advanced cancer.

The Perceptions of Palliative Care Instrument (PPCI) is a tool used to access perceptions towards palliative care in patients with advanced cancer. However, its psychometric properties have not been widely tested using modern psychometric methods. This study aimed to examine the psychometric properties of the PPCI in patients with advanced cancer using Rasch analysis. Four hundred and forty four Participants were recruited from the Department of Medical Oncology at a tertiary care hospital in Xinxiang City, Henan Province, China, between October 2020 and February 2021. Participants completed the PPCI. Rasch analysis procedures were conducted, including assessment of unidimensionality, model-date fit, rating scale function, differential item functioning, item-person map, and person and item reliability. The unidimensionality of the PPCI was confirmed, although two items (18 and 21) did not fit the Rasch model. The degree of fit of each item to its respective dimension was excellent, with Infit MNSQ and Outfit MNSQ values ranging from 0.73 to 1.33. The PPCI demonstrated high reliability, with an item reliability of 0.99 and a person reliability of 0.77. The PPCI is a valid and reliable instrument for assessing perceptions of palliative care in advanced cancer patients. However, to further improve the quality and applicability of the PPCI, the deletion of items 18 and 21 is recommended, as they did not fit the Rasch model.

Psychometric evaluation of the study interest questionnaire-short form among Chinese nursing students based on classical test theory and item response theory

BackgroundThere is currently no dedicated measurement for assessing nursing students’ study interest in China. Considering the good reliability, validity, and widespread applicability of the Study Interest Questionnaire-Short Form (SIQ-SF), the objective of this study was to validate its usage among Chinese nursing students.MethodsThe translation and cross-cultural adaptation rigorously followed the modified Brislin model. A cross-sectional survey was conducted using the Chinese version of the SIQ-SF and convenience sampling was employed to select nursing students. The Psychometric evaluation of the Chinese version of the SIQ-SF was conducted based on Classical Test Theory and Item Response Theory.ResultsA total of 1158 participants were included in the analysis. The item-level content validity index (CVI) ranged from 0.9 to 1.0, and the scale-level CVI was 0.98. In the Exploratory factor analysis, three factors with eigenvalues above 1 were identified, accounting for 62.554% of the cumulative variance. In the confirmatory factor analysis, the CMIN\\DF was 5.639, the GFI was 0.953, the CFI was 0.902, and the IFI was 0.904. The Cronbach’s α coefficient of the Chinese version of the SIQ-SF was 0.70. Thirty-one participants were invited to sign the scale after two weeks. The intraclass correlation coefficient was 0.784, and that of items ranged from 0.70 to 0.819. The infit MnSQ values ranged between 0.76 and 1.51, and the outfit MnSQ values ranged between 0.72 and 1.76. The point-measure correlation value ranged between 0.30 and 0.68. The item difficulty measures ranged from − 0.66 to 1.44 logit and the individual learning interest estimations ranged from − 4.22 to 4.97 logit. DIF contrast ranged from 0.00 to 0.33 logits, with all p values greater than 0.05.ConclusionsThe Chinese version of the SIQ-SF demonstrated acceptable reliability and validity among Chinese nursing students and could be used to assess nursing students’ study interest in China. With the aid of this scale, teachers can gain a better understanding of nursing students’ study interests, thereby maximizing their learning effects through appropriate content and methods.

Item response theory analysis of the Chinese version compulsive shopping scale

Compulsive shopping, a behavioral disorder with significant personal and social repercussions, necessitates reliable assessment tools, especially within different cultural contexts. While several scales exist to measure compulsive buying behavior, there is a lack of validated instruments tailored to the Chinese population. This study aimed to examine the psychometric properties of the Chinese version of the Compulsive Shopping Scale (CSS) using Item Response Theory (IRT). A total of 637 young healthy participants (42.5 % males and 57.5 % females), with a mean age of 21.32 years (SD = 2.06), both undergraduate and postgraduate students, were recruited from various cities in China. Sixty-four participants were retested after a two-week interval to assess test-retest reliability. The results indicated that a one-dimensional factor structure was appropriate. The reliability analyses, including test-retest reliability, ω, α, and λ6 tests, demonstrated good internal consistency. The rating scale model analysis showed infit and outfit MNSQ values between 0.6 and 1.4, indicating a good fit. The item information curve and test information curve indicated a normal distribution of scores. Differential item functioning was observed in two items, suggesting potential gender-related differences. These findings indicate that the Chinese version of the CSS is a reliable and valid instrument for measuring compulsive shopping behaviors in Chinese populations.

Chinese version of the Physical Resilience Scale (PRS): reliability and validity test based on Rasch analysis

BackgroundPhysical resilience is known to minimize the adverse outcomes of health stressors for older people. However, validated instruments that assess physical resilience in older adults are rare. Therefore, the purpose of this study was to translate the Physical Resilience Scale (PRS) into Chinese and to validate its psychometric properties in a population of community-dwelling older adults following SARS-CoV-2 infection.MethodsThis study used a cross-sectional design and translated the Physical Resilience Scale into Chinese. A total of 426 older adults who had recovered from SARS-CoV-2 infection were chosen for assessment through convenience sampling. The measurement data were analyzed using the Rasch analysis.ResultsRasch analysis indicates that the Physical Resilience Scale demonstrates excellent reliability, validity, and unidimensionality. The Infit MNSQ and Outfit MNSQ of each entry were 0.77 ~ 1.19, and the degree of fit of each entry to the scale was good. Person and item separation reliability support the internal consistency of the studied samples and PRS items.ConclusionsThe Physical Resilience Scale has good reliability and is suitable for the assessment of physical resilience tests in older people. However, the overall difficulty of the scale is not suitable for older adults of all ability ranges, and it is possible to add higher and lower difficulty items and adjust the difficulty spacing between items in a later study.

Chinese version of the Death Anxiety Beliefs and Behaviours Scale: Psychometric properties based on CTT and IRT

ObjectivesThe Death Anxiety Beliefs and Behaviour Scale (DABBS) is a unique tool designed to assess the detrimental beliefs and avoidant behaviors linked to death anxiety. This study aimed to adapt the DABBS into Chinese and verify its psychometric characteristics within a community-dwelling older adult population. MethodsThis study used a cross-sectional design and translated the DABBS into Chinese. The psychometric properties of 437 community-dwelling older persons were assessed using the Classical Test Theory (CTT) and Item Response Theory (IRT). ResultsThe DABBS consisted of affect, beliefs, and behaviours, with 18 entries in 3 dimensions. The I-CVI of the DABBS ranged from 0.857 to 1.000, and the S-CVI was 0.968; Cronbach's alpha of 0.905. Rasch analysis results showed that the 3 dimensions of the scale possessed good unidimensionality, and the entries were well-fitted to the dimensions in which they were located; each entry Infit MNSQ and Outfit MNSQ were in the range of 0.50 to 1.50; the analysis of the functional differences of items in different characteristic subgroups (gender) showed that the absolute value of DIF Contrast was <0.50. The results of the Wright map showed that the ability of the participants was normally distributed, and the difficulty of the scale's entries was adapted to the average ability level of older adults. ConclusionsThe present data indicate that the revised DABBS is a valid and reliable tool for assessing affect, beliefs, and behaviors associated with death anxiety in community-dwelling older individuals.

Measuring Key Factors in E-Government Participation: A Rasch Modeling Approach with Human Resource Management Considerations

This study examines the subject matter of e-government participation among Indonesian citizens, aiming to assess its effectiveness in enhancing government-citizen relationships through social media and good governance practices. The objectives include constructing and validating a survey instrument based on 15 experience items related to e-government perception, utilizing Rasch modeling to analyze data from 101 respondents. Results indicate strong reliability (Cronbach's Alpha = 0.94) and significant correlations (Person raw score-to-measure correlation = 0.99), affirming the instrument's capability to measure variables influencing e-government participation effectively. The findings align well with Rasch model expectations (Infit and Outfit MNSQ within acceptable ranges), highlighting the instrument's suitability for comprehensive assessment. In conclusion, this research contributes insights into enhancing government transparency, accountability, and responsiveness, crucial for fostering trust and effective governance in the digital era.

Perception of Citizen Science Project in Ecology Courses Using Rasch Measurement Model

The objectives of this study are to obtain information about the knowledge and readiness of students to accept citizen science that is integrated into ecology. Respondents were students of the biology education study program, State Islamic University, Sulthan Thaha Saifuddin Jambi, who had already completed the Ecology course. Respondents amounted to 75 students consisting of 67 female students and 8 male students. The study employed a quantitative descriptive approach. The perception data obtained was analyzed by utilizing Rasch model measurement software, WINSTEPS version 5.2.4.0. Rasch analysis was chosen based on its capability to model the relationship between item’s difficulty in rating, person’s ability, and possible responses. Data in the feasible category, since the calculated INFIT MNSQ and OUTFIT MNSQ scores are close to 1.0 logit, also the INFIT ZSTD and OUTFIT ZSTD scores are close to 0.0. The Cronbach Alpha value implies that a questionnaire can be accepted to measure student perception. The results of data analysis find out symptoms that students have a desire to try something new that are brought into Ecology courses. The diagnosis of student perceptions also indicates that students are expecting something new to be included in ecology learning that can support the improvement of competence in accordance with their expectations. Keywords: perception, citizen science project, ecology courses, rasch measurement model

Validation of the Revised Systems Thinking Measuring Instrument(Re_STMI) for High School Students

The purpose of this study is to verify the validity of the revised STMI, which is a revised and supplemented version of the Systems Thinking Measuring Instrument (STMI) developed by Lee et al. (2013) for high school students. For this purpose, we used data from 475 high school students' responses to 20 Revised STMI questions and 20 STS scale questions. Validity verification includes item response analysis (Item Reliability, Item Map, Infit and Outfit MNSQ, and DIF of male and female groups), exploratory factor analysis (main axis factor analysis using Promax), and confirmatory factor analysis using structural equation model. And central/cross validity verification and correlation analysis between the two scales were used. The research results are as follows. First, as a result of the item response analysis of the Revised STMI 20 questions, Item Reliability was .98 and Infit MNSQ was .84~1.39, and valid results were also analyzed in Item Map and DIF analysis. Second, in the exploratory factor analysis, all sub-questions of the five sub-factors showed factor loading values of .3 or higher, and the reliability of each factor was .631~.800 and the overall reliability was .863. Third, in the confirmatory factor analysis, all model fit values were good (χ2/df: 2.406, CFI: .923, TLI: .908, SRMR: .046, RMSEA: .054), and the convergent validity and crossvalidity were also established. The results showed that the model was suitable. Lastly, in the correlation analysis with the 20 items of the STS scale, the correlation between all items was .754, and the correlation with STS items for each sub-factor was high, ranging from .426 to .658. Therefore, in the case of the Revised STMI, significant results were obtained not only in construct validity but also in official validity, and the results of this study showed improved validity results compared to research results using existing scales. Continuously, additional validation research should be conducted so that the Revised STMI can be applied to various groups, including not only high school students, but also elementary and middle school students, and college students. In addition, ongoing research on the relationship between system thinking and other learning-related measures should be actively conducted using validated instrument.

Analysis on The Understanding of Environmental Management Practices among Contractors in Malaysia using Rasch Measurement Model

The rapid development of construction industry in Malaysia has caused a significant impact on the environment and has resulted in increased demand for implementing environmental management practices. This study aimed to analyze the level of understanding on environmental management practices among contractors in Malaysia. A total of 47 contractors from all grades in Malaysia participated in this study. This study also used a 5-point Likert scale for the data collection process. Items in the questionnaire were analyzed using the Rasch Measurement Model to test the validity and reliability of the research instruments. The results showed that the item reliability value was 0.57 and the individual reliability value was 0.89. The value of the item separation index is 1.16 while the value of the individual separation index obtained is 2.78. Overall, person measure for construct of understanding level on environmental management practices ranged from +7.77 logit to -1.30 logit. For construct challenge faced by the contractor, the maximum value for person measure is +6.35 logit and the minimum measurement value is -0.97 logit. For the last construct which is the impact of environmental management practices on the environment, the value of person measure is +8.27 logit to -1.62 logit. Through item suitability analysis, there are some items that need to be dropped or harmonized as they not meet the requirements in one of the Outfit MNSQ and Outfit ZSTD ranges. The Rasch Measurement Model has identified that most contractors in Malaysia still have a moderate level of understanding on environmental management practices. The findings obtained at the end of this study are significant so that these environmental management practices remain practiced by contractors to maintain sustainable development in future.

Use of The Rasch Model for Analysis of Test Instruments in Class V Science Subjects State 38 Primary School Manado

This research was conducted to analyze the test instruments used to measure students' abilities in science and science subjects in Class V of SD Negeri 38 Manado. The students consisted of 40 students. The questions given were in the form of 5-point description questions related to the material of light and its properties. The Rasch model is used to obtain fit test items. This analysis was carried out with the help of Winsteps software. From the output of the Winsteps program, the results obtained were 4 questions according to the Rasch model with an average Outfit MNSQ value for each person and an item of 0.99 each. Meanwhile, the Outfit ZSTD values for people and items are -0.10 and -0.29 respectively. Meanwhile, the reliability of the instrument expressed in Cronbach's alpha is 0.18.

Pengembangan Instrumen Kecakapan Kerja Mahasiswa (Rasch Model Analisis)

Employability Skills for College Students in University are an asset that can bring students closer to being ready to enter the world of work. Employability Skill can be interpreted as a series of characteristics including knowledge, attitudes, and skills that make a person capable of being trained. To get a general trend or a long work profile students need an instrument to reveal these variables. This study aims to develop employability skill instruments that are psychometrically tested both in terms of validity testing and instrument reliability testing using the RASCH model analysis method. The research instrument has been tested on 728 people. The results showed that from testing the instrument's validity using the RASCH model analysis on Outfit MNSQ, Outfit ZSTD, and Pt Measure Corr, of the 54 items developed, a total of 48 items met psychometric standards. The instrument's reliability on Cronbach's alpha value is in very good criteria, even in terms of reliability a person is in the very good category, and item reliability is in the special category. Therefore, the student employability skills instrument meets psychometric requirements and can be used as an instrument to measure student employability skills.

Developing Students’ Scientific Literacy through Wikipedia Digital Library

This study investigates the impact of utilizing the digital library Wikipedia on high school students’ scientific literacy skills in biology. This research used a quasi-experiment design with a one-group pre-test and post-test method, conducted in a high school in Bandung, Indonesia. The participants consisted of 60 tenth-grade students. The research instrument consisted of 24 multiple-choice questions designed to assess nine scientific literacy indicators, including the ability to describe phenomena scientifically, design and evaluate scientific investigations, and interpret data and evidence scientifically. Each question was scored dichotomously, with the correct answer receiving a score of 1 and incorrect answers assigned a score of 0. Pre-test and post-test scores were analyzed using the Rasch model through Winsteps Version 3.73. Based on data analysis, the items fit with the Rasch model because the infit and outfit MNSQ is 1.0 and the residual item of unexplained variance is 2.3% to 9.8%. The reliability of the items shows an item value of 0.97, which is classified as excellent. The indicators considered the most difficult before being treated were identifying accurate scientific ideas, distinguishing between types of sources, and evaluating literature source validity after the treatment. There was a significant improvement in students’ scientific literacy skills after utilizing the digital library, Wikipedia. The findings provide valuable insights into the effectiveness of integrating digital media into biology courses, highlighting the potential of Wikipedia as a digital reference source for enhancing students’ scientific literacy in high school settings.

Development of a new 17-item Asthenopia Survey Questionnaire using Rasch analysis.

To develop the 17-item Asthenopia Survey Questionnaire (ASQ)-17 by Rasch analysis, and to generate a predictiveness score. Totally 739 participants were recruited and 680 were involved in the result analysis in this prospective, cross-sectional study. Three rounds of Rasch analysis were used to analyze the psychometric characteristics of items and options. Phase 1 assessed the original ASQ-19, adjusted the item scoring mode to a four-point Likert response rating scale and combined the 18th and 19th items into a new item. Phase 2 deleted the 11th item. Phases 3 and 4 assessed the new ASQ-17. All the evaluation indexes of ASQ-17 were acceptable. The Infit and Outfit MnSq values of items were 0.67-1.48, the variance explained by the principal component and the unexplained variance explained by the first contrast were 53.90%-59.40% and 1.50-1.80 in three dimensions. The curve peaks of scores in each dimension were separated and in the same order. The PSR and PSI values were 2.80 and 0.89, respectively. The mean scores of dimensions A (9.5±4.1 vs 3.5±3.2), B (7.3±3.3 vs 2.5±2.7), C (4.3±2.2 vs 1.4±2.0) and total (21.1±8.1 vs 7.4±7.0) in asthenopia participants were significantly higher than those without asthenopia (all P<0.001). The area under the curve in two groups was 0.899 (P<0.001). Youden's index was up to the maximum value of 0.784 when the cut-off value was 12.5. ASQ-17 has stronger option sorting and suitability than ASQ-19. It is an effective assessment tool for asthenopia with an optimal cut-off threshold value of 12.5, which is suitable for diagnosis and curative effect evaluation.

Validation of the knowledge on the Noor evidence-based medicine questionnaire for healthcare professionals: Rasch analysis

&lt;b&gt;Aim&lt;/b&gt;: This study aimed to examine the construct verification of the knowledge on the Noor evidence-based medicine (EBM) questionnaire using the Rasch measurement model.&lt;br /&gt; &lt;b&gt;Methods&lt;/b&gt;: A cross-sectional study was conducted among ninety healthcare professionals working in a government hospital. The Rasch model was used to investigate the distribution of statistics, unidimensionality, polarity, misfit, and Wright map.&lt;br /&gt; &lt;b&gt;Results&lt;/b&gt;: The Rasch analysis showed that the 15 items had high reliability of items at 0.96, while reliability for persons were 0.81. Item K15 is a misfit (PtMea Corr=0.22, outfit MnSq=1.95, outfit z-std=5.00, infit MnSq=1.63, infit z-std=3.60); the item does not contribute to the construction of scale but not degrading. Three items (K1, K14, and K9) can easily be answered even by low ability respondents.&lt;br /&gt; &lt;b&gt;Conclusions&lt;/b&gt;: The Noor EBM questionnaire knowledge is robust with excellent psychometric properties that can be used for both research and clinical purposes.

Fit to the rasch model of the FEEL-KJ Spanish adaptation

BackgroundIn recent decades, scientific production related to Emotional Regulation (ER) has increased significantly. Deficits in ER have been linked to various mental health problems. The aim of this work is to evaluate the Spanish adaptation of the Feel-Kj scale to the RASCH model. MethodChildren from 9 to 16 years old took part of this study. One hundred and eighteen children between 9 and 16 years old and one hundred and fifteen from 13 to 16. The 254 participants were attending 25 schools located in de Valencian Community in Spain. ResultsBoth infit and outfit MNSQ statistics provided evidence for the construct validity of the FEEL-KJ questionnaire. The infit and outfit mean values (1.01 and 1.02, respectively) were close to the perfect fit value of 1. ConclusionsFrom these results it can be sensed that the FEEL-KJ will be a valid and reliable instrument to apply in the Spanish speaking population, although it is necessary to make some minor adjustments in terms of translation.

Assessing Students Understanding of Chemical Bonds Material by Rasch Modeling

This study aimed to assess high school student’s understanding of Banjarmasin by Rasch modeling, preci-sely the cognitive aspect. The research method was descriptive with a quantitative approach to assess the pattern of reactions and symptoms of Rasch data. According to the research findings, the person reliability (students) was +0.66 based on the Rasch modeling analysis, with the criterion satisfactory, indicating that the students knowledge was adequate. At the same time, Cronbachs’ alpha score had a value of +0.71 and met the criteria of excellent. In addition, the students with the highest level of understanding were coded 127P12B with a logit value (person measure) of 2.52 and average students with logit value of -0.77 or 0. In contrast, the students with low abilities were coded 030P10B and 059L11B (same logit value, -3.27 or 0). Other data were INFIT MNSQ and OUTFIT MNSQ (person) with average values of +0.99 and +1.14 (closer to 1, the better), while the INFIT and OUTFIT ZSTD values were -0.1 and 0.0 respectively (closer to 0, better). The most difficult question was Q16, which had a logit score of 1.96; students’ logit values carried this question. Students were regarded to have appropriate knowledge even though their ability excee-ded the problem ability. In conclusion, the Rasch model-based pre-learning evaluation was found to be useful in measuring students’ cognitive grasp of chemical bonding material. This study could serve as the primary reference for teachers in assessing students’ level of knowledge before they begin learning. In addi-tion to interpreting student knowledge through various Rasch data presentations, a study of the structure of questions with varying difficulty levels could be used to assess the full group of students’ understanding of chemistry.

The Rasch Model: Implementation of Physics Learning Evaluation Instrument Based on Higher Order Thinking Skills

Purpose of the study: This research was conducted to analyze the test instruments used to measure students' HOTS abilities on static fluid material at Senior high school 2 Jambi City.&#x0D; Methodology: The evaluation instrument provided was in the form of 20 items of two-tier multiple choice questions related to static fluid material. The Rasch model is used to get fit items. This analysis was carried out with the help of Ministeps software. Respondents in this study were 36 students of class XI MIPA 1 Senior high school 2 Jambi City.&#x0D; Main Findings: From the output of the Ministeps program, the results obtained were 20 questions according to the Rasch model with an average Outfit MNSQ score for person and item respectively 0.94 and 0.94. While the Outfit ZSTD values ​​for persons and items are 0 and -0.1 respectively, while the reliability of the instrument expressed in Cronbach's alpha is 0.79.&#x0D; Novelty/Originality of this study: The evaluation instrument used for physics subjects on static fluid material is fit with the Rasch model. so that the instrument meets the criteria for use.

Validating criteria for identifying core concepts using many-facet rasch measurement

IntroductionCore concepts are foundational, discipline-based ideas considered necessary for students to learn, remember, understand, and apply. To evaluate the extent to which a concept is “core,” experts often rate concepts using various criteria, such as importance, complexity, and timeliness. However, there is a lack of validity evidence for core concepts criteria.MethodsUsing a three-facet Many-Facet Rasch Measurement (MFRM) model, we analyzed 7,558 ratings provided by 21 experts/raters for 74 pharmacology core concepts using five criteria measured on a five-point scale.ResultsAll of the criteria had Infit or Outfit MnSq values within the expected range (0.5 &amp;lt; MnSq &amp;lt; 1.7), suggesting the criteria contained an acceptable amount of variability; a reliability index of approximately 1.00 suggested that the criteria were reliably separated with a high degree of confidence. The rating scale Outfit MnSq statistics also fell within the 0.5–1.7 model fit limits; the “average measure” and “Rasch-Andrich thresholds” increased in magnitude as the rating scale categories increased, suggesting that core concepts with higher ratings were in fact meeting the criteria more convincingly than those with lower ratings. Adjusting expert ratings using the MFRM facets (e.g., rater severity) resulted in reorganization of core concepts rankings.ConclusionThis paper is a novel contribution to core concepts research and is intended to inform other disciplines seeking to develop, implement, and refine core concepts within the biomedical sciences and beyond.

Item-Level Psychometrics of the Meaningful Activity Participation Assessment (MAPA) Scale.

This study investigates the psychometric properties of the Meaningful Activity Participation Assessment-Meaning (MAPA-M) scale using the Rasch measurement model. For the psychometric properties of MAPA-M, principal component analysis, Rasch analysis, and differential item functioning analysis were conducted. Participants in this study were 480 older adults from the USC Well Elderly 2 study, recruited from 21 locations in the Los Angeles metropolitan area. There were eight items with DIF, but they were accepted because they assumed unidimensionality and showed good person invariance. The 25 items assuming unidimensionality of MAPA-M had values between 0.6 and 1.4 in infit and Outfit MnSq, and all ZSTD values were less than 2.0. The 25 items demonstrated a conceptual item-difficulty hierarchy. The person strata value was 2.68, which is equivalent to a reliability index value of .76. The findings indicate that the revised scale can accurately and reliably measure meaningful activities by older adults.

Validation of two short forms of Stroke Impact Scale: unidimensionality and reliability

Purpose We examined the unidimensionality and Rasch reliability of both Jenkinson’s and MacIsaac’s eight-item short versions of the Stroke Impact Scale (SF-SIS), a questionnaire for assessing overall health-related quality of life (HRQOL). Methods This study was a secondary data analysis in which 263 persons with stroke completed the SIS. The 263 persons, on average, had age of 60 years, mild stroke, and moderate disability of self-care. The unidimensionality of both versions was validated via testing of model fitting and principal component analysis (PCA) of residuals using the Rasch analysis to determine the Rasch reliability and measures. Results The eight items in both SF-SIS versions met the criteria of infit and outfit MNSQ (<1.4 and >0.6), indicating good data-model fit. The PCA showed that no dominant factors existed in the residuals of the items. The person reliability of Jenkinson’s and MacIsaac’s SF-SIS versions was 0.80 and 0.79, respectively. The Rasch measures (i.e., person measure in logits) ranged from −1.06 to 1.87 in Jenkinson’s SF-SIS and −0.82 to 1.88 in MacIsaac’s version. Conclusions The unidimensionality of both versions was supported. The Rasch measures of both appear valid for representing overall HRQOL levels. Both versions also showed acceptable reliability for research purposes. Implications for rehabilitation The unidimensionality was justified for both versions (Jenkinson’s and MacIsaac’s eight-item short-versions of Stroke Impact Scale). The Rasch scores of both versions appear valid for representing overall health-related quality of life. Both versions showed acceptable reliability for research purposes, but not sufficiently reliable for clinical use.