{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,28]],"date-time":"2026-01-28T05:02:38Z","timestamp":1769576558935,"version":"3.49.0"},"reference-count":54,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2023,12,18]],"date-time":"2023-12-18T00:00:00Z","timestamp":1702857600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"National Funds through Portuguese Foundation for Science and Technology","doi-asserted-by":"publisher","award":["SFRH\/BD\/140669\/2018"],"award-info":[{"award-number":["SFRH\/BD\/140669\/2018"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"National Funds through Portuguese Foundation for Science and Technology","doi-asserted-by":"publisher","award":["UIDP\/04923\/2020"],"award-info":[{"award-number":["UIDP\/04923\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"European Fund for Regional Development (FEDER)","award":["SFRH\/BD\/140669\/2018"],"award-info":[{"award-number":["SFRH\/BD\/140669\/2018"]}]},{"name":"European Fund for Regional Development (FEDER)","award":["UIDP\/04923\/2020"],"award-info":[{"award-number":["UIDP\/04923\/2020"]}]},{"name":"National Funds through the Portuguese Foundation for Science and Technology","award":["SFRH\/BD\/140669\/2018"],"award-info":[{"award-number":["SFRH\/BD\/140669\/2018"]}]},{"name":"National Funds through the Portuguese Foundation for Science and Technology","award":["UIDP\/04923\/2020"],"award-info":[{"award-number":["UIDP\/04923\/2020"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Geriatrics"],"abstract":"<jats:p>(1) Background: to examine the psychometric properties of the Portuguese version of the Timed Instrumental Activities of Daily Living (TIADL) in nursing home residents. (2) Methods: Fifty-two participants (85.8 \u00b1 4.2 years) were assessed on two occasions, 10\u201314 days apart. The same rater administered all assessments. Internal consistency was analysed through Cronbach\u2019s \u03b1. The reliability was estimated using the intraclass correlation coefficients (ICCs), and the standard error of the mean (SEM) was used to estimate the minimal detectable change (MDC). Construct validity was determined by Spearman\u2019s correlation coefficients. (3) Results: For internal consistency, Cronbach\u2019s \u03b1 (0.81) revealed high internal reliability. All of the subtests demonstrated good or excellent reliability and also presented acceptable measurement precision, considering the criterion SEM &lt; SD\/2. According to Spearman\u2019s rho, correlations with the Portuguese version of the TIADL, the Useful Field of View test, and semantic and phonemic fluency tests were significant, with moderate positive and negative correlations (0.4 &lt; rs &lt; 0.69). (4) Conclusions: The Portuguese version of the TIADL had good to excellent test\u2013retest reliability (ICC &gt; 0.90) and acceptable measurement precision. This test could be a valuable clinical tool for assessing actual performance in instrumental activities of daily living in nursing home residents.<\/jats:p>","DOI":"10.3390\/geriatrics8060124","type":"journal-article","created":{"date-parts":[[2023,12,18]],"date-time":"2023-12-18T03:59:24Z","timestamp":1702871964000},"page":"124","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Translation and Psychometric Properties of the Portuguese Version of the Timed Instrumental Activities of Daily Living (TIADL)"],"prefix":"10.3390","volume":"8","author":[{"given":"Luis","family":"Galhardas","sequence":"first","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Sa\u00fade e Desenvolvimento Humano, Universidade de \u00c9vora, Largo dos Colegiais, 7000-727 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Centre (CHRC), Pal\u00e1cio do Vimioso, Gabinete 256, Largo Marqu\u00eas de Marialva, Apart. 94, 7002-554 \u00c9vora, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9753-8381","authenticated-orcid":false,"given":"Armando","family":"Raimundo","sequence":"additional","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Sa\u00fade e Desenvolvimento Humano, Universidade de \u00c9vora, Largo dos Colegiais, 7000-727 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Centre (CHRC), Pal\u00e1cio do Vimioso, Gabinete 256, Largo Marqu\u00eas de Marialva, Apart. 94, 7002-554 \u00c9vora, Portugal"}]},{"given":"Jos\u00e9","family":"Marmeleira","sequence":"additional","affiliation":[{"name":"Departamento de Desporto e Sa\u00fade, Escola de Sa\u00fade e Desenvolvimento Humano, Universidade de \u00c9vora, Largo dos Colegiais, 7000-727 \u00c9vora, Portugal"},{"name":"Comprehensive Health Research Centre (CHRC), Pal\u00e1cio do Vimioso, Gabinete 256, Largo Marqu\u00eas de Marialva, Apart. 94, 7002-554 \u00c9vora, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,12,18]]},"reference":[{"key":"ref_1","unstructured":"World Health Organization (2015). World Report on Ageing and Health, World Health Organization."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Boccardi, M., and Boccardi, V. (2019). Psychological Wellbeing and Healthy Aging: Focus on Telomeres. Geriatrics, 4.","DOI":"10.3390\/geriatrics4010025"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1097\/MCO.0000000000000335","article-title":"The Effects of Exercise on Muscle Strength, Body Composition, Physical Functioning and the Inflammatory Profile of Older Adults: A Systematic Review","volume":"20","author":"Liberman","year":"2017","journal-title":"Curr. Opin. Clin. Nutr. Metab. Care"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"152","DOI":"10.1152\/physiol.00029.2016","article-title":"Physical Activity, Aging, and Physiological Function","volume":"32","author":"Harridge","year":"2017","journal-title":"Physiology"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"462","DOI":"10.1111\/jgs.13322","article-title":"Heterogeneity of Physical Function Responses to Exercise Training in Older Adults","volume":"63","author":"Chmelo","year":"2015","journal-title":"J. Am. Geriatr. Soc."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"98","DOI":"10.1016\/j.archger.2016.03.007","article-title":"Sex, Race and Age Differences in Muscle Strength and Limitations in Community Dwelling Older Adults: Data from the Health and Retirement Survey (HRS)","volume":"65","author":"Germain","year":"2016","journal-title":"Arch. Gerontol. Geriatr."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"303","DOI":"10.1016\/j.gerinurse.2017.10.015","article-title":"Exercise Merging Physical and Cognitive Stimulation Improves Physical Fitness and Cognitive Functioning in Older Nursing Home Residents: A Pilot Study","volume":"39","author":"Marmeleira","year":"2017","journal-title":"Geriatr. Nurs."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"645","DOI":"10.3233\/JAD-160593","article-title":"BDNF Responses in Healthy Older Persons to 35 Minutes of Physical Exercise, Cognitive Training, and Mindfulness: Associations with Working Memory Function","volume":"55","author":"Ledreux","year":"2016","journal-title":"J. Alzheimer\u2019s Dis."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"477","DOI":"10.2147\/CIA.S54978","article-title":"A Systematic Review of Interventions Conducted in Clinical or Community Settings to Improve Dual-Task Postural Control in Older Adults","volume":"9","author":"Agmon","year":"2014","journal-title":"Clin. Interv. Aging"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"264","DOI":"10.1590\/S0080-62342011000100037","article-title":"Tendencies of Studies Addressing the Eldest Individuals of Aged Population in the Community: A (Inter)National Systematic Review","volume":"45","author":"Rosset","year":"2011","journal-title":"Rev. Esc. Enferm. USP"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"779","DOI":"10.1016\/j.jamda.2016.06.015","article-title":"Is It Ethical Not to Precribe Physical Activity for the Elderly Frail?","volume":"17","author":"Izquierdo","year":"2016","journal-title":"J. Am. Med. Dir. Assoc."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1016\/S0033-3182(95)71666-8","article-title":"Global Assessment of Functioning: A Modified Scale","volume":"36","author":"Hall","year":"1995","journal-title":"Psychosomatics"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"179","DOI":"10.1093\/geront\/9.3_Part_1.179","article-title":"Assessment of Older People: Self-Maintaining and Instrumental Activities of Daily Living","volume":"9","author":"Lawton","year":"1969","journal-title":"Gerontologist"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1159\/000500597","article-title":"Is Low Psychomotor Speed a Marker of Brain Vulnerability in Late Life? Digit Symbol Substitution Test in the Prediction of Alzheimer, Parkinson, Stroke, Disability, and Depression","volume":"47","author":"Amieva","year":"2019","journal-title":"Dement. Geriatr. Cogn. Disord."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"254","DOI":"10.1159\/000058360","article-title":"Timed Instrumental Activities of Daily Living Tasks: Relationship to Cognitive Function and Everyday Performance Assessments in Older Adults","volume":"48","author":"Owsley","year":"2002","journal-title":"Gerontology"},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"124","DOI":"10.1007\/s11357-015-9862-1","article-title":"Do Frailty and Cognitive Impairment Affect Dual-Task Cost during Walking in the Oldest Old Institutionalized Patients?","volume":"37","author":"Cadore","year":"2015","journal-title":"Age"},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"78","DOI":"10.1016\/j.maturitas.2013.10.005","article-title":"Frailty in INstitutionalized Older Adults from ALbacete. The FINAL Study: Rationale, Design, Methodology, Prevalence and Attributes","volume":"77","author":"Abizanda","year":"2014","journal-title":"Maturitas"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"603","DOI":"10.1016\/j.jamda.2015.02.002","article-title":"Frailty Index and Mortality in Nursing Home Residents in France: Results from the INCUR Study","volume":"16","author":"Kelaiditi","year":"2015","journal-title":"J. Am. Med. Dir. Assoc."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"104079","DOI":"10.1016\/j.archger.2020.104079","article-title":"Test-Retest Reliability of Upper-Limb Proprioception and Balance Tests in Older Nursing Home Residents","volume":"89","author":"Galhardas","year":"2020","journal-title":"Arch. Gerontol. Geriatr."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"812","DOI":"10.1001\/archpsyc.1983.01790060110016","article-title":"The Mini-Mental State Examination","volume":"40","author":"Folstein","year":"1983","journal-title":"Arch. Gen. Psychiatry"},{"key":"ref_21","first-page":"9","article-title":"Adapta\u00e7\u00e3o \u00e0 Popula\u00e7\u00e3o Portuguesa Da Tradu\u00e7\u00e3o Do Mini Mental State Examination (MMSE)","volume":"1","author":"Guerreiro","year":"1994","journal-title":"Rev. Port. Neurol."},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"World Medical Association (2013). World Medical Association Declaration of Helsinki: Ethical Principles for Medical Research Involving Human Subjects. JAMA, 310, 2191.","DOI":"10.1001\/jama.2013.281053"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"640","DOI":"10.1017\/S1355617718000152","article-title":"Prospective Memory Is a Key Predictor of Functional Independence in Older Adults","volume":"24","author":"Hering","year":"2018","journal-title":"J. Int. Neuropsychol. Soc."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"975","DOI":"10.1016\/j.jagp.2019.01.210","article-title":"Improving Everyday Functioning in the Old-Old with Working Memory Training","volume":"27","author":"Borella","year":"2019","journal-title":"Am. J. Geriatr. Psychiatry"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"2021","DOI":"10.1007\/s40520-019-01384-3","article-title":"Role of Cognitive Resources on Everyday Functioning among Oldest-Old Physically Frail","volume":"32","author":"Dupuy","year":"2019","journal-title":"Aging Clin. Exp. Res."},{"key":"ref_26","unstructured":"WHO (2020, May 09). Process of Translation and Adaptation of Instruments. Available online: https:\/\/www.coursehero.com\/file\/30372721\/WHO-Process-of-translation-and-adaptation-of-instrumentspdf\/."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"435","DOI":"10.1016\/j.jclinepi.2014.11.021","article-title":"A Review of Guidelines for Cross-Cultural Adaptation of Questionnaires Could Not Bring out a Consensus","volume":"68","author":"Epstein","year":"2015","journal-title":"J. Clin. Epidemiol."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"737","DOI":"10.1016\/j.jclinepi.2010.02.006","article-title":"The COSMIN Study Reached International Consensus on Taxonomy, Terminology, and Definitions of Measurement Properties for Health-Related Patient-Reported Outcomes","volume":"63","author":"Mokkink","year":"2010","journal-title":"J. Clin. Epidemiol."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1159\/000356753","article-title":"Useful Field of View Test","volume":"60","author":"Wood","year":"2014","journal-title":"Gerontology"},{"key":"ref_30","first-page":"71","article-title":"The Useful Field of View Test: A New Technique for Evaluating Age-Related Declines in Visual Function","volume":"64","author":"Ball","year":"1993","journal-title":"J. Am. Optom. Assoc."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1093\/arclin\/act001","article-title":"Semantic Fluency and Phonemic Fluency: Regression-Based Norms for the Portuguese Population","volume":"28","author":"Cavaco","year":"2013","journal-title":"Arch. Clin. Neuropsychol."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"262","DOI":"10.1080\/13607860412331336788","article-title":"The Impact of Speed of Processing Training on Cognitive and Everyday Performance","volume":"9","author":"Edwards","year":"2005","journal-title":"Aging Ment. Health"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"917","DOI":"10.1037\/a0013466","article-title":"What Predicts Changes in Useful Field of View Test Performance?","volume":"23","author":"Lunsman","year":"2008","journal-title":"Psychol. Aging"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"329","DOI":"10.1159\/000065259","article-title":"Transfer of a Speed of Processing Intervention to Near and Far Cognitive Functions","volume":"48","author":"Edwards","year":"2002","journal-title":"Gerontology"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"529","DOI":"10.1080\/13803390490515432","article-title":"Reliability and Validity of Useful Field of View Test Scores as Administered by Personal Computer","volume":"27","author":"Edwards","year":"2005","journal-title":"J. Clin. Exp. Neuropsychol."},{"key":"ref_36","unstructured":"Perry, R.H., Charlotte, B., Isabella, M., and Bob, C. (2004). Spss Explain, Routledge."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"94","DOI":"10.1016\/S0031-9406(05)61211-4","article-title":"Reliability: What Is It, and How Is It Measured?","volume":"86","author":"Bruton","year":"2000","journal-title":"Physiotherapy"},{"key":"ref_38","first-page":"37","article-title":"Establishing Some Measures of Absolute and Relative Reliability of a Motor Test","volume":"17","year":"2015","journal-title":"Croat. J. Educ.-Hrvat. \u010casopis Za Odgoj i Obraz."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/j.jcm.2016.02.012","article-title":"A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research","volume":"15","author":"Koo","year":"2016","journal-title":"J. Chiropr. Med."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"366","DOI":"10.1016\/j.gaitpost.2010.12.003","article-title":"Reliability and Clinical Correlates of 3D-Accelerometry Based Gait Analysis Outcomes According to Age and Fall-Risk","volume":"33","author":"Bautmans","year":"2011","journal-title":"Gait Posture"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"137","DOI":"10.1016\/j.chb.2014.12.006","article-title":"Measuring DSM-5 Internet Gaming Disorder: Development and Validation of a Short Psychometric Scale","volume":"45","author":"Pontes","year":"2015","journal-title":"Comput. Hum. Behav."},{"key":"ref_42","first-page":"231","article-title":"Quantifying Test-Retest Reliability Using the Intraclass Correlation Coefficient and the SEM","volume":"19","author":"Weir","year":"2005","journal-title":"J. Strength Cond. Res."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1016\/j.tjem.2018.08.001","article-title":"User\u2019s Guide to Correlation Coefficients","volume":"18","author":"Akoglu","year":"2018","journal-title":"Turk. J. Emerg. Med."},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Pallant, J. (2020, May 09). SPSS Survival Manual; Open University Press 2nd edition: United Kingdom. Available online: https:\/\/www.scirp.org\/reference\/referencespapers?referenceid=2050871.","DOI":"10.4324\/9781003117445"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"e13049","DOI":"10.1111\/psyp.13049","article-title":"How Many Trials Does It Take to Get a Significant ERP Effect? It Depends","volume":"55","author":"Boudewyn","year":"2018","journal-title":"Psychophysiology"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"101387","DOI":"10.1016\/j.techsoc.2020.101387","article-title":"Behavioral Intention towards Mobile Learning in Taiwan, China, Indonesia, and Vietnam","volume":"63","author":"Lin","year":"2020","journal-title":"Technol. Soc."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"679","DOI":"10.1016\/S2212-5671(15)00123-9","article-title":"How Reliable Are Measurement Scales? External Factors with Indirect Influence on Reliability Estimators","volume":"20","author":"Ursachi","year":"2015","journal-title":"Procedia Econ. Financ."},{"key":"ref_48","doi-asserted-by":"crossref","unstructured":"Gellman, M.D., and Turner, J.R. (2013). Encyclopedia of Behavioral Medicine, Springer.","DOI":"10.1007\/978-1-4419-1005-9"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"66","DOI":"10.1136\/eb-2015-102129","article-title":"Validity and Reliability in Quantitative Studies","volume":"18","author":"Heale","year":"2015","journal-title":"Evid. Based Nurs."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"131","DOI":"10.1159\/000082199","article-title":"Sensory and Cognitive Factors Influencing Functional Ability in Older Adults","volume":"51","author":"Wood","year":"2005","journal-title":"Gerontology"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"72","DOI":"10.1016\/j.neubiorev.2017.11.004","article-title":"Systematic Review and Meta-Analyses of Useful Field of View Cognitive Training","volume":"84","author":"Edwards","year":"2018","journal-title":"Neurosci. Biobehav. Rev."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"673610","DOI":"10.1155\/2012\/673610","article-title":"Semantic and Phonemic Verbal Fluency in Parkinson\u2019s Disease: Influence of Clinical and Demographic Variables","volume":"25","author":"Obeso","year":"2012","journal-title":"Behav. Neurol."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"403","DOI":"10.1037\/0033-295X.103.3.403","article-title":"The Processing-Speed Theory of Adult Age Differences in Cognition","volume":"103","author":"Salthouse","year":"1996","journal-title":"Psychol. Rev."},{"key":"ref_54","first-page":"215","article-title":"L\u2019examen Psychologique Dans Les Cas d\u2019enc\u00e9phalopathie Traumatique. (Les Problems.). [The Psychological Examination in Cases of Traumatic Encepholopathy. Problems.]","volume":"28","author":"Rey","year":"1941","journal-title":"Arch. Psychol."}],"container-title":["Geriatrics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2308-3417\/8\/6\/124\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T21:40:35Z","timestamp":1760132435000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2308-3417\/8\/6\/124"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,12,18]]},"references-count":54,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2023,12]]}},"alternative-id":["geriatrics8060124"],"URL":"https:\/\/doi.org\/10.3390\/geriatrics8060124","relation":{},"ISSN":["2308-3417"],"issn-type":[{"value":"2308-3417","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,12,18]]}}}