Factor Analysis of Categorical Item Responses

2015 ◽  
Author(s):  
R. Darrell Bock ◽  
Robert Gibbons
Keyword(s):  
Factor Analysis ◽  
Item Responses

FACTOR ANALYSIS AND ROTATION OF THE 566 MMPI ITEMS

1974 ◽  
Vol 2 (2) ◽  
pp. 147-156 ◽  
Author(s):  
Robert A. C. Stewart
Keyword(s):  
Factor Analysis ◽  
Social Behavior ◽  
Factor Structure ◽  
Undergraduate Students ◽  
Physical Symptoms ◽  
Female Undergraduate ◽  
Varimax Rotation ◽  
Item Responses ◽  
Males And Females ◽  
Components Analysis

Because of the still imperfectly understood basic factor structure of the MMPI, a Principal Components Analysis and Varimax Rotation was conducted on the MMPI item responses of 50 female undergraduate students of Education at Massey University. Eight factors were extracted which were named: Neuroticism, Anti-social behavior, Fundamentalist religiosity, Subjectivity, Introversion, Paranoic tendency, Depression and Physical symptoms. The possibly different factor structure for males and females needs explication in further work.

scholarly journals Efficient and precise Ultra-QuickDASH scale measuring lymphedema impact developed using computerized adaptive testing

2021 ◽  
Author(s):  
Cai Xu ◽  
Mark V. Schaverien ◽  
Joani M. Christensen ◽  
Chris J. Sidey-Gibbons
Keyword(s):  
Factor Analysis ◽  
Computerized Adaptive Testing ◽  
Daily Activities ◽  
Response Model ◽  
Factor Scores ◽  
Graded Response Model ◽  
Local Independence ◽  
Irt Model ◽  
Graded Response ◽  
Item Responses

Abstract Purpose This study aimed to evaluate and improve the accuracy and efficiency of the QuickDASH for use in assessment of limb function in patients with upper extremity lymphedema using modern psychometric techniques. Method We conducted confirmative factor analysis (CFA) and Mokken analysis to examine the assumption of unidimensionality for IRT model on data from 285 patients who completed the QuickDASH, and then fit the data to Samejima’s graded response model (GRM) and assessed the assumption of local independence of items and calibrated the item responses for CAT simulation. Results Initial CFA and Mokken analyses demonstrated good scalability of items and unidimensionality. However, the local independence of items assumption was violated between items 9 (severity of pain) and 11 (sleeping difficulty due to pain) (Yen’s Q3 = 0.46) and disordered thresholds were evident for item 5 (cutting food). After addressing these breaches of assumptions, the re-analyzed GRM with the remaining 10 items achieved an improved fit. Simulation of CAT administration demonstrated a high correlation between scores on the CAT and the QuickDash (r = 0.98). Items 2 (doing heavy chores) and 8 (limiting work or daily activities) were the most frequently used. The correlation among factor scores derived from the QuickDASH version with 11 items and the Ultra-QuickDASH version with items 2 and 8 was as high as 0.91. Conclusion By administering just these two best performing QuickDash items we can obtain estimates that are very similar to those obtained from the full-length QuickDash without the need for CAT technology.

The latent factor structure of the WAIS‐R: A factor analysis of individual item responses

1989 ◽  
Vol 45 (2) ◽  
pp. 281-293
Author(s):  
Niels C. Beck ◽  
David Tucker ◽  
Robert Frank ◽  
Jerry Parker ◽  
Rebecca Lake ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Factor Structure ◽  
Individual Item ◽  
Latent Factor ◽  
Item Responses

scholarly journals Psychometric Properties of the MDADI—A Preliminary Study of Whether Less is Truly More?

Dysphagia ◽  
2021 ◽  
Author(s):  
Daniel J. Lin ◽  
Jenan Altamimi ◽  
Kim Pearce ◽  
Janet A. Wilson ◽  
Joanne M. Patterson
Keyword(s):  
Factor Analysis ◽  
Clinical Practice ◽  
Psychometric Properties ◽  
Missing Values ◽  
Factor Model ◽  
Patient Questionnaires ◽  
Item Responses ◽  
Preliminary Study ◽  
Md Anderson ◽  
Anderson Dysphagia Inventory

AbstractThe MD Anderson Dysphagia Inventory (MDADI) is a 20-item dysphagia-specific QOL questionnaire with four subscales: global, emotional, functional, and physical. It is widely used in clinical practice and in research; however, its psychometric properties have been under-researched. We aim to evaluate the organisation of the MDADI subscales and identify any redundant items. The MDADI is a routinely collected outcome measure at two centres in northeast England. Questionnaires completed at three months following treatment were extracted from these existing databases. Factor analysis was carried out with the aim of reducing redundancy among the set of questionnaire items. Cases with missing values were excluded. A total of 196 complete patient questionnaires were used in factor analysis. A one-factor model accounted for around 50% of the total variance in item responses. The top five endorsed items (abbreviated by the questionnaire item keywords: Excluded, Irritate, Esteem, Social, and Why) in this one factor appeared in three (emotional, functional, and physical) of the four supposed MDADI subscales, i.e. global, emotional, functional, and physical. Our results suggest an overlap of three MDADI subscales across the top five endorsed items. The content of the top five questions all appear related to the psychosocial aspects of swallowing. This implies some redundancy of the items in the original subscales of the questionnaire. Using the most endorsed items, it appears feasible to abbreviate the 20-item MDADI questionnaire to a 5-item “MiniDADI” questionnaire, which is likely to have greater utility in routine clinical practice outside of research settings.

scholarly journals The psychometric properties of a Scale for Achievement Motive in Rehabilitation, and the effects of achievement motive on self-efficacy, hopelessness, and economic poverty for community-dwelling elderly people using rehabilitation services

2016 ◽  
Author(s):  
Nobuyuki Sano ◽  
Makoto Kyougoku
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Item Response ◽  
Self Efficacy ◽  
Multidimensional Item Response Theory ◽  
Community Dwelling ◽  
Multidimensional Item Response ◽  
Achievement Motive ◽  
Confirmatory Factor ◽  
Item Responses

Background: Achievement motive is expected to prevent lack of self-efficacy and hope, which negatively impact rehabilitation support, health, and psychological well-being. It has been indicated that the factor structure of the Scale for Achievement Motive in Rehabilitation (SAMR), which was developed to evaluate the state of achievement motive in clients, is affected by gender, age, and type of disorder; however, the item responses for the SAMR have not been fully elucidated. Purpose: This study demonstrates the effects of achievement motive on self-efficacy, hopelessness, and economic poverty. The secondary purpose was to test the psychometric properties for the robustness of factor analysis and the item responses for the SAMR. Methods: A cross-sectional study was conducted to assess achievement motive, self-efficacy, hopelessness, and economic poverty in 581 community-dwelling elderly people. Data from a self-administered questionnaire were analyzed for structural relationship, using a structural equation modeling approach, multi-group confirmatory factor analysis, and multidimensional item response theory. Results: For structural relationship, the modified model indicated an adequate model fit level {Comparative Fit Index (CFI) = 0.914, Tucker Lewis Index (TLI) = 0.906, Root Mean Square Error of Approximation (RMSEA) = 0.062, 90% Confidence Interval (CI) [0.058, 0.066]}, with significant effects among achievement motive, self-efficacy, and hopelessness; i.e., the direct and indirect effects of achievement motive on self-efficacy and hopelessness were accepted. For multi-group confirmatory factor analysis, the SAMR factor structure displayed strong measurement invariance across the group for gender, care level, and age. For multidimensional item response theory, the results showed enough item discrimination and difficulty intensity for each SAMR item. Discussion: This study suggests that achievement motive is important to prevent clients from missing and giving up their goals and to execute support in rehabilitation smoothly. In addition, we suggest that SAMR is a structurally valid scale to measure two-factor structures across different groups, and the item characteristics and total score enable proper understanding of achievement motive.

scholarly journals The psychometric properties of a Scale for Achievement Motive in Rehabilitation, and the effects of achievement motive on self-efficacy, hopelessness, and economic poverty for community-dwelling elderly people using rehabilitation services

2016 ◽  
Author(s):  
Nobuyuki Sano ◽  
Makoto Kyougoku
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Item Response ◽  
Self Efficacy ◽  
Multidimensional Item Response Theory ◽  
Community Dwelling ◽  
Multidimensional Item Response ◽  
Achievement Motive ◽  
Confirmatory Factor ◽  
Item Responses

Background: Achievement motive is expected to prevent lack of self-efficacy and hope, which negatively impact rehabilitation support, health, and psychological well-being. It has been indicated that the factor structure of the Scale for Achievement Motive in Rehabilitation (SAMR), which was developed to evaluate the state of achievement motive in clients, is affected by gender, age, and type of disorder; however, the item responses for the SAMR have not been fully elucidated. Purpose: This study demonstrates the effects of achievement motive on self-efficacy, hopelessness, and economic poverty. The secondary purpose was to test the psychometric properties for the robustness of factor analysis and the item responses for the SAMR. Methods: A cross-sectional study was conducted to assess achievement motive, self-efficacy, hopelessness, and economic poverty in 581 community-dwelling elderly people. Data from a self-administered questionnaire were analyzed for structural relationship, using a structural equation modeling approach, multi-group confirmatory factor analysis, and multidimensional item response theory. Results: For structural relationship, the modified model indicated an adequate model fit level {Comparative Fit Index (CFI) = 0.914, Tucker Lewis Index (TLI) = 0.906, Root Mean Square Error of Approximation (RMSEA) = 0.062, 90% Confidence Interval (CI) [0.058, 0.066]}, with significant effects among achievement motive, self-efficacy, and hopelessness; i.e., the direct and indirect effects of achievement motive on self-efficacy and hopelessness were accepted. For multi-group confirmatory factor analysis, the SAMR factor structure displayed strong measurement invariance across the group for gender, care level, and age. For multidimensional item response theory, the results showed enough item discrimination and difficulty intensity for each SAMR item. Discussion: This study suggests that achievement motive is important to prevent clients from missing and giving up their goals and to execute support in rehabilitation smoothly. In addition, we suggest that SAMR is a structurally valid scale to measure two-factor structures across different groups, and the item characteristics and total score enable proper understanding of achievement motive.

Factor Analysis of Measures of Articulation, Language, Auditory Processing, Reading-Spelling, and Maxillofacial Structure

1977 ◽  
Vol 20 (2) ◽  
pp. 319-324
Author(s):  
Anita F. Johnson ◽  
Ralph L. Shelton ◽  
William B. Arndt ◽  
Montie L. Furr
Keyword(s):  
Factor Analysis ◽  
Clinical Judgment ◽  
Auditory Processing

This study was concerned with the correspondence between the classification of measures by clinical judgment and by factor analysis. Forty-six measures were selected to assess language, auditory processing, reading-spelling, maxillofacial structure, articulation, and other processes. These were applied to 98 misarticulating eight- and nine-year-old children. Factors derived from the analysis corresponded well with categories the measures were selected to represent.

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