Internal consistency and factor structure of the adherence scale for alcoholics anonymous

The objective of the article was to estimate the internal consistency and factor structure of the Adherence Scale for Alcoholics Anonymous Groups. The scale was applied to 257 alcoholic patients who had been admitted for treatment in 3 hospitals in Porto Alegre, about 6 months earlier. The scale was produced based on an adaptation of the Drug Attitude Inventory Scale. Internal consistency was measured using Cronbach alpha. Data were subjected to a principal component analysis. The coefficient of internal consistency was 0.71. All items showed corrected item-total correlation coefficients above 0.29. Questionnaire items with factor loading of 0.57 or above were considered in the final factor solution. The factor analysis resulted in 2 dimensions which corresponded to 67.01% of the total variance. This scale appears to be a valid instrument for use in a population of alcoholic patients.

Download Full-text

The Reliability and Validity of the Australian Moral Disengagement Scale

Behaviour Change ◽

10.1017/bec.2016.9 ◽

2016 ◽

Vol 33 (3) ◽

pp. 136-149

Author(s):

Nicola C. Newton ◽

Lexine A. Stapinski ◽

Katrina E. Champion ◽

Maree Teesson ◽

Kay Bussey

Keyword(s):

Factor Structure ◽

Internal Consistency ◽

Convergent Validity ◽

Moral Disengagement ◽

Cross Validation ◽

Reliability And Validity ◽

Principal Component ◽

Self Report ◽

Valid Instrument ◽

The Individual

Background: The present study explored the reliability, validity, and factor structure of a modified version of the Moral Disengagement Scale (MDS), which comprehensively assesses proneness to disengage from different forms of conduct specific to Australian adolescents. Methods: A sample of 452 students (Mage = 12.79; SD = 1.93) completed the modified MDS and the Australian Self-Report Delinquency Scale. A multistep approach was used to evaluate the factor structure of the MDS. The sample was divided into exploratory (n = 221) and cross-validation samples (n = 231). Principal component analysis was conducted with the exploratory sample and multiple factor solutions compared to determine the optimal factor structure of the modified MDS. The final factor solution was confirmed in the cross-validation sample using confirmatory factor analysis. Internal consistency of the final scale and convergent validity with the delinquency questionnaire was also assessed. Results: Analyses resulted in a 22-item MDS for use in Australia, with four factors mapping onto the four conceptual categories of moral disengagement. The individual subscales demonstrated adequate to good internal consistency, and the total scale also demonstrated high internal consistency (α = 0.87). Convergent validity of the scale was established. Conclusions: The 22-item Australian MDS is a reliable and valid instrument for use within an Australian population.

Download Full-text

Reliability, Validity, and Factor Structure of the Geriatric Depression Scale in Turkish Elderly: Are There Different Factor Structures for Different Cultures?

International Psychogeriatrics ◽

10.1017/s1041610200006293 ◽

2000 ◽

Vol 12 (2) ◽

pp. 163-172 ◽

Cited By ~ 68

Author(s):

Turan Ertan ◽

Engin Eker

Keyword(s):

Factor Structure ◽

Internal Consistency ◽

Discriminant Validity ◽

Geriatric Depression Scale ◽

Depression Scale ◽

Principal Component ◽

Community Dwelling ◽

Geriatric Depression ◽

Reasonable Time ◽

Positive Form

The purpose of this study was to examine the Geriatric Depression Scale (GDS) translated into Turkish for its reliability, discriminant validity, and factor structure in a sample of 276 community-dwelling elderly and 30 patients with major depression. One item (Item 5) was discovered to have conceptual difficulty for Turkish elderly and was transformed to negative form. Item 2 was transformed to positive form to keep the number of positive and negative items equal to that in the original GDS. A reasonable time stability with 1-week interval (r:.74) and a high level of internal consistency (α = .91) were observed. Student's t test resulted in a significant discriminant validity for the scale total score. Factor study with principal component analysis and varimax rotation gave rise to a structure with seven factors. Results of the same analysis with two factors were found to be easier to interpret. The first factor was composed of 19 items reflecting “depressive affect and thought content.” The other 11 items representing “decrease in motivation and cognitive functions” loaded in the second factor. In conclusion, the Turkish GDS was found to have reasonable time reliability, high internal consistency, and discriminant validity for Turkish elderly. Its two-factor structure can be used as an informative instrument for epidemiological studies, reflecting two main dimensions of depression in the elderly.

Download Full-text

Development of the Preference for Online Social Interaction Scale for Chinese adolescents

Social Behavior and Personality An International Journal ◽

10.2224/sbp.2016.44.6.1005 ◽

2016 ◽

Vol 44 (6) ◽

pp. 1005-1014

Author(s):

Zhiqi You ◽

Yuan Tian ◽

Fanchang Kong ◽

Zongkui Zhou ◽

Youjie Zheng

Keyword(s):

Social Interaction ◽

Construct Validity ◽

Psychometric Properties ◽

Factor Structure ◽

Internal Consistency ◽

Three Dimensions ◽

Interaction Frequency ◽

Face To Face ◽

Valid Instrument ◽

Online Social Interaction

Our purpose in this study was to develop a scale to measure preference for online social interaction (POSI). The psychometric properties of the POSI Scale were tested with 2 separate samples of Chinese teenagers (age 13–18 years). The responses of the first group (n = 352) were used to explore the factor structure of the scale. The responses of the second group (n = 593) were used to test construct validity and consistency reliability of the POSI Scale. The results indicated that (a) the POSI Scale consists of three dimensions: online social interaction frequency, online social interaction propensity, and perception of superiority of online social interaction compared to face-to-face social interaction; and (b) the POSI Scale has good structural validity and internal consistency and reliability, and is a reliable and valid instrument for measurement of adolescents' preference for online social interaction, especially in the context of Chinese teenagers.

Download Full-text

Development and testing of three unique scales measuring the brand image of nursing

International Journal of Pharmaceutical and Healthcare Marketing ◽

10.1108/ijphm-09-2016-0052 ◽

2018 ◽

Vol 12 (1) ◽

pp. 2-14 ◽

Cited By ~ 2

Author(s):

Judi Allyn Godsey ◽

Tom Hayes ◽

Clinton Schertzer ◽

Robert Kallmeyer

Keyword(s):

Health Care ◽

Factor Structure ◽

Internal Consistency ◽

Health Care Access ◽

Brand Image ◽

Principal Component ◽

Internal Consistency Reliability ◽

Content Type ◽

Brand Position ◽

The Impact

Purpose Nurses have been called to be leaders in the transformation of health care and to help improve health-care access for the nation’s most vulnerable populations. However, to lead health-care transformation, the profession of nurses must first see themselves as leaders. Unfortunately, nursing has been described as lacking cohesiveness and failing to communicate a consistent brand image. No empirically tested quantitative tools exist to measure the brand identity of nursing, making it difficult to assess where the profession stands in regard to the mantel of leadership. The purpose of this study was to develop empirically sound instruments which could measure nurses’ perceptions of their professional brand image. A total of three scales were developed and then tested: The Nursing Brand Image Scale, Nursing’s Current Brand Position Scale and Nursing’s Desired Brand Position Scale. Design/methodology/approach The factor structure and internal consistency reliability of each scale were examined following survey administration to a national sample of registered nurses. Principal component analyses were used to explore the factor structure of each scale. Item reduction was achieved through examination of the loading of items across the factors and the impact of the item on internal consistency reliability. Findings Respondents to the survey were nursing alumni who received a baccalaureate or master’s degree in nursing at a private, mid-western university, and nursing faculty affiliated with a private, collegiate network (n = 286). For all scales, principal component analysis showed no inter-item correlations >0.9 or <0.1. The Kaiser–Meyer–Olkin measure for sampling adequacy was high and Bartlett’s test of sphericity was significant (p < 0001). The internal consistency reliability of each of the three scales was good to excellent. Current brand position mean scores were highest for the factor “caring advocates for patients/public”, and lowest on “influential leaders”. The most desired brand position mean scores were highest and rated similarly for factors “influential leaders” and “patient-centered caregivers”. Originality/value This study provides strong preliminary evidence for the factor structure and internal consistency reliability for each of the three scales and represents an important first step toward quantitatively measuring the brand image of nursing. However, results suggest there is work to be done if nursing is to formulate and adopt a brand image that consistently reinforces their role as leaders. Further testing of the scales with other nursing populations, the general public and with larger sample sizes is recommended.

Download Full-text

Psychometric properties of the Posttraumatic Growth Inventory in a sample of Brazilian university students

Trends in Psychiatry and Psychotherapy ◽

10.1590/2237-6089-2017-0050 ◽

2018 ◽

Vol 40 (4) ◽

pp. 292-299

Author(s):

Thiago Loreto Garcia da Silva ◽

Victoria Guimarães Ramos ◽

Julia Candia Donat ◽

Fernando Rainho de Oliveira ◽

Gustavo Gauer ◽

...

Keyword(s):

University Students ◽

Psychometric Properties ◽

Posttraumatic Growth ◽

Factor Structure ◽

Internal Consistency ◽

Convergent Validity ◽

Principal Component ◽

Depression Symptoms ◽

Big Five Model ◽

Posttraumatic Growth Inventory

Abstract Objective: To examine psychometric properties of the Brazilian version of the Posttraumatic Growth Inventory (PTGI). Method: A total of 300 university students were evaluated though instruments that investigated trauma history, depression and posttraumatic symptoms, and personality traits through the Big Five model. Pearson's correlation was used to assess internal consistency, inter-item reliability and construct validity. Principal component analysis and confirmatory factor analysis were performed to investigate the factor structure of the PTGI. Results: Results confirmed the original five-factor structure. The results showed good internal consistency for the total scale (α = 0.91) and its subscales, ranging from α = 0.85 to α = 0.70. Also, evidence of construct and convergent validity was observed through correlations with posttraumatic and depression symptoms and personality measures. Conclusions: These preliminary results suggest that the Brazilian PTGI is reliable and showed adequate evidence of validity.

Download Full-text

Hospital Anxiety and Depression (HAD) scale: Factor structure, item analyses and internal consistency in a large population

The British Journal of Psychiatry ◽

10.1192/bjp.179.6.540 ◽

2001 ◽

Vol 179 (6) ◽

pp. 540-544 ◽

Cited By ~ 512

Author(s):

Arnstein Mykletun ◽

Eystein Stordal ◽

Alv A. Dahl

Keyword(s):

Psychometric Properties ◽

Factor Structure ◽

Internal Consistency ◽

Rating Scale ◽

Large Population ◽

Principal Component ◽

Health Study ◽

Anxiety And Depression ◽

Hospital Anxiety ◽

Had Scale

BackgroundThe Hospital Anxiety and Depression (HAD) rating scale is a commonly used questionnaire. Former studies have given inconsistent results as to the psychometric properties of the HAD scale.AimsTo examine the psychometric properties of the HAD scale in a large population.MethodAll inhabitants aged 20–89 years (n=92 100) were invited to take part in The Nord-Tr⊘ndelag Health Study, Norway. A total of 65 648 subjects participated, and only completed HAD scale forms (n=51 930) formed the basis for the psychometric examinations.ResultsPrincipal component analysis extracted two factors in the HAD scale that accounted for 57% of the variance. The anxiety and depression sub-scales shared 30% of the variance. Both sub-scales were found to be internally consistent, with values of Cronbach's coefficient (a) being 0.80 and 0.76, respectively.ConclusionsBased on data from a large population, the basic psychometric properties of the HAD scale as a self-rating instrument should be considered as quite good in terms of factor structure, intercorrelation, homogeneity and internal consistency.

Download Full-text

The H&F-Multidimensional Perfectionism Scale 13 (H&F-MSP13): Construct and convergent validity

European Psychiatry ◽

10.1016/j.eurpsy.2016.01.771 ◽

2016 ◽

Vol 33 (S1) ◽

pp. s287-s287

Author(s):

M.J. Soares ◽

A.T. Pereira ◽

A. Araújo ◽

D. Silva ◽

J. Valente ◽

...

Keyword(s):

Principal Component Analysis ◽

Psychometric Properties ◽

Internal Consistency ◽

Convergent Validity ◽

Principal Component ◽

Varimax Rotation ◽

Valid Instrument ◽

Good Internal Consistency ◽

Explained Variance ◽

Competing Interest

IntroductionThe Hewitt and Flett Multidimensional Perfectionism Scale (H&F-MPS) is one of the most used measures of perfectionism. Their 45-items evaluate self-Oriented (SOP), Self-Prescribed (SPP), and Other Oriented (OOP) perfectionism.ObjectivesTo study the internal consistency and convergent validity of the H&F-MSP13.MethodsOne hundred and ninety-two university students (78.1% females), aged 19.74 years (sd = 2.10; range: 17–28) completed the Portuguese versions of H&F-MPS (Soares et al., 2003) and of Frost et al. MPS (F-MPS) (Amaral et al., 2013). Thirteen items were selected from the Portuguese version of the H&F-MPS, based on their loading in the factor (0.60 and over) (Soares et al., 2003).ResultsThe H&FMPS13 revealed good internal consistency (α = 0.816). The corrected item-total subscale Spearman's correlations were high (from 0.418 to 0.820). The principal component analysis with factors varimax rotation produced three factors, which revealed acceptable/good internal consistency (SOP: explained variance/EV = 35.4%, α = .900; SPP: EV = 16.3%, α = 0.695; OOP: EV = 10.8%, α = 0.709). The correlations between the H&F-MSP13 scores and the matching scores of the H&F-MPS were high (from r = 0.745 to r = 0.945, all P < .01), suggesting that both scales measure similarly the constructs. The H&F-MSP13 and the H&F-MPS total scores demonstrate good convergent validity with the total score of F-MPS, as indicated by the correlations (r = 0.581/r = 0.636, respectively). The correlations similarities between the H&F-MSP13 and H&F-MSP dimensions and the F-MPS dimensions and total scores were also considerable.ConclusionsThe H&F-MSP13 is a valid instrument to measure perfectionism that reveals convergent validity with the F-MPS, retaining the adequate psychometric properties of the H&F-MPS and its administration is less time consuming.Disclosure of interestThe authors have not supplied their declaration of competing interest.

Download Full-text

The Mandarin Voice Handicap Index for Laryngectomees With Pneumatic Artificial Laryngeal and Esophageal Speech

American Journal of Speech-Language Pathology ◽

10.1044/2021_ajslp-20-00241 ◽

2021 ◽

pp. 1-12

Author(s):

Chen-Chi Wang ◽

Jia-Shiou Liao ◽

Hsiu-Chin Lai ◽

Yi-Hsuan Lo

Keyword(s):

Internal Consistency ◽

Intraclass Correlation ◽

Correlation Coefficients ◽

Voice Handicap Index ◽

Good Test ◽

Retest Reliability ◽

Related Quality ◽

Valid Instrument ◽

Test Retest Reliability ◽

The Impact

Purpose The Voice Handicap Index (VHI) questionnaire assesses the impact of total laryngectomy on voice-related quality of life. This study evaluates the Mandarin VHI, including its internal consistency, test–retest reliability, content validity, and differences in scores for Mandarin alaryngeal patients with pneumatic artificial laryngeal (PA) and esophageal (ES) speech. Method Translation and validation of the VHI questionnaire was performed through the forward–backward translation technique. This study used a sample of 78 PA and 23 ES participants from Taiwan who completed the Mandarin VHI. Forty-two of the alaryngeal participants completed the Mandarin VHI twice over a period of 7–63 days. Results The measurement of the internal consistency of the Mandarin VHI showed a high Cronbach's alpha coefficient for the total score (.975) and the functional (.930), physical (.939), and emotional (.938) subscales. Based on the results of the intraclass correlation coefficients, good test–retest reliability for the total and domain scores was found (intraclass correlation coefficient = .827–.863). Conclusion The Mandarin VHI was validated as an instrument with proper internal consistency and reliability, which supports the Mandarin VHI as a valid instrument for the self-evaluation of handicaps related to voice problems in PA and ES speakers.

Download Full-text

A Psychometric Evaluation of the Threadgold Communication Tool for Persons with Dementia

Dementia and Geriatric Cognitive Disorders Extra ◽

10.1159/000444789 ◽

2016 ◽

Vol 6 (1) ◽

pp. 150-160 ◽

Cited By ~ 2

Author(s):

Benedicte Sørensen Strøm ◽

Knut Engedal ◽

Ellen-Karine Grov

Keyword(s):

Internal Consistency ◽

Psychometric Evaluation ◽

Principal Component ◽

Internal Consistency Reliability ◽

Communication Tool ◽

People With Dementia ◽

Oblimin Rotation ◽

Valid Instrument ◽

Test Retest Reliability ◽

State Examination

Background: The objective of this study was to investigate the psychometric properties of the Threadgold Communication Tool (TCT). Method: Internal consistency reliability was measured using Cronbach's α coefficient and inter-item correlation. Test-retest was performed to examine the instrument's stability. Exploratory principal component analysis (PCA) with oblimin rotation was carried out to evaluate construct validity. Finally, the score on each item of the TCT was correlated with the person's Mini Mental State Examination (MMSE) and Barthel Index of activities of daily living scores. Results: A total of 51 persons participated, with a mean age of 86.7 (SD 6.6) years, of whom 46 were women with moderate-to-severe dementia [mean MMSE score 7.5 (SD 6.7)]. There were two measurement points 2 weeks apart. The results showed a satisfactory level for internal consistency and a high test-retest reliability (r = 0.76). The corrected item-total correlation ranged between 0.50 and 0.87, and a two-factor structure was revealed at the PCA. ‘Vocalizing' seemed to measure another aspect of communication and was the only item which was negatively loaded. Conclusion: Despite the low sample size in this study, the results revealed the TCT as a reliable and valid instrument, suitable for measuring communication among people with dementia. We suggest clarifying the understanding of ‘vocalizing' before considering removing it from the scale.

Download Full-text

Arabic Version of the Electronic Health Literacy Scale in Arabic-Speaking Individuals in Sweden: Prospective Psychometric Evaluation Study (Preprint)

10.2196/preprints.24466 ◽

2020 ◽

Author(s):

Josefin Wångdahl ◽

Karuna Dahlberg ◽

Maria Jaensson ◽

Ulrica Nilsson

Keyword(s):

Health Literacy ◽

Construct Validity ◽

Factor Structure ◽

Internal Consistency ◽

Psychometric Evaluation ◽

Principal Component ◽

Arabic Version ◽

Ehealth Literacy ◽

Test Retest Reliability ◽

Arabic Speaking

BACKGROUND Health information is often communicated through the internet. It is vital for the end user to have a range of digital skills as well as understand the information to promote their health. There is a valid and reliable 8-item instrument, the Electronic Health Literacy Scale (eHEALS), that evaluates these skills. The number of Arabic-speaking people migrating to Sweden and to other parts of the world is increasing due to unstable military and political situations in their countries of origin. Poor health and limited health literacy have been described in this population in Sweden. Still, to our knowledge, an Arabic version of eHEALS has not been tested for validity or reliability. Thus, Arabic-speaking populations in Sweden cannot be included in studies measuring eHealth literacy, which does not support equal treatment in health care. OBJECTIVE The aim of this study was to translate and adapt the original English eHEALS version into Arabic and to evaluate its psychometric properties. METHODS The eHEALS was rigorously translated, adapted, and evaluated for content validity. We conducted prospective psychometric evaluation with natively Arabic-speaking participants living in Sweden. Construct validity, factor structure, internal consistency, and test-retest reliability were evaluated using Spearman correlation, principal component analysis, Cronbach α, and weighted quadratic Cohen κ, respectively. RESULTS The study population consisted of Arabic-speaking participants (n=298; age: mean 41.8 years, SD 10.5). Construct validity was supported with weak and moderate correlations. Principal component factor analysis revealed a one-factor structure. Internal consistency was high (Cronbach α=0.92); test-retest reliability was acceptable (weighted quadratic Cohen κ=0.76). Evaluation indicated that eHealth literacy threshold values should be dichotomized (limited and sufficient) rather than trichotomized (inadequate, problematic, and sufficient). CONCLUSIONS The Arabic version of eHEALS, a unidimensional scale that is valid and reliable for measuring eHealth literacy among natively Arabic-speaking people in Sweden, was found to be acceptable and feasible in a general population.

Download Full-text