COA At-a-Glance
Evidence of cognitive interviewing of draft instrument in target patient population
Evidence of internal consistency
Evidence of test-retest or inter-rater reliability
Evidence of concurrent validity
Evidence of known-groups validity
Evidence of ability to detect change over time
Evidence of responder thresholds
Inclusion of the COA in product labelling
- Overview
- Content Validity
- Reliability
- Validity
- Responder Thresholds
- Reference(s) of development / validation
- Other references
- Inclusion of the COA in product labelling
- Existence of Scoring / Interpretation / User Manual
- Original language and translations
- References of translations
- Authors and contact information
- Condition of use: copyright
- Website
- Review copy
Overview
Instrument Name: Timed Up and Down Stairs
Abbreviation: TUDS
Description of Tool:
The Timed Up and Down Stairs (TUDS) is a PerfO composed of 1 item measuring functional mobility in children aged 8-14 years.
Minimum Qualification Required by COA Administrator: MA or BA
Year: 2004
Objective of Development:
To measure functional mobility
Population of Development: Age range (therapeutic indication):
8-14 years (All)
Pediatric Population(s) in which COA has been used:
Respiratory Tract Diseases ; Immune System Diseases ; Neoplasms ; Musculoskeletal Diseases ; Hemic and Lymphatic Diseases ; Nervous System Diseases ; OtorhiNolaryngologic Diseases ; Pathological Conditions, Signs and Symptoms ; Congenital, Hereditary, and Neonatal Diseases and Abnormalities ; Nutritional and Metabolic Diseases ; Mental Disorders ; Digestive System Diseases ; Respiratory Tract Diseases
COA type:
Number of Items 1 task
Mode of Administration:
Data Collection Mode:
Time for Completion: Not reported
Response Scales: Time to accomplish the task (in seconds)
Summary of Scoring:
Available scores:
Global score is the total time (seconds)
Weighting:
No
Score Interpretation:
Shorter times = Better functional ability
Content Validity
Evidence of Literature Review: None identified
Evidence of Instrument Review: None identified
Evidence of Clinical or Expert Input: None identified
Evidence of concept elicitation in target patient population: None identified
Evidence of a Saturation Grid: None identified
Evidence for Selection of Data Collection Method: None identified
Recall/Observation Period:
Evidence for Selection of Reponse Options: None identified
Evidence of cognitive interviewing of draft instrument in target patient population: None identified
Evidence of Preliminary Scoring of Items and Domains: None identified
Evidence related to respondent and administrator burden: None identified
Evidence of a Conceptual Framework: None identified
Evidence of an item-tracking matrix: None identified
Evidence related to item selection: None identified
Evidence of re-testing the final version: None identified
Reliability
Internal consistency (Cronbach's alpha): Not applicable
Test-retest Reliability (ICC):
Zaino CA (2004)
Intra-rater reliability: One rater scored the same participants in real time and a second time later, with a video
- Intraclass Correlation Coefficient (ICC): 0.97
- Population/Disease: Children and adolescents from a convenience sample; n=24, Age range of the sample: 8-14 years
Test-retest reliability
- Intraclass Correlation Coefficient (ICC): 0.94
- Was a definition of stability applied to identify stable patients: No
- Time frame or interval between the two administrations: 2 hours
- Population/Disease: Children and adolescents from a convenience sample; n=25, Age range of the sample: 8-14 years
Inter-rater/ inter-interviewer reliability (kappa):
ZaiNo CA (2004)
Inter-observer reliability
- Intraclass Correlation Coefficient (ICC): 0.98
- Population/Disease: Children and adolescents from a convenience sample; n=9, Age range of the sample: 8-14 years
Evidence of test-retest or inter-rater reliability: Yes
Validity
Concurrent validity (convergent, divergent):
ZaiNo CA (2004)
1- Correlation coefficient used: Spearman's correlation coefficient
- Measures: Timed Up and Go (TUG), Functional Reach Test (FRT), Timed One Legged Stance (TOLS)
- Results: Significant correlations were found between TUDS score and TUG (r=0.78; p=0.001), FRT (r=-0.57; p<0.001) and TOLS (r=-0.77; p<0.001) scores
- Population/Disease: Children and adolescents from a convenience sample; n=47, Age range of the sample: 8-14 years
2- Correlation coefficient used: Spearman's correlation coefficient
- Measures: Timed Up and Go (TUG)
- Results: A significant correlation was found between TUDS and TUG score (r=0.33; p=0.046)
- Population/Disease: Children and adolescents with typical development; n=27, Age range of the sample: 8-14 years
3- Correlation coefficient used: Spearman's correlation coefficient
- Measures: Timed Up and Go (TUG), Functional Reach Test (FRT), Timed One Legged Stance (TOLS)
- Results: Significant correlations were found between TUDS score and TUG (r=0.68; p=0.001), FRT (r=-0.27; p Not stated) and TOLS (r=-0.41; p Not stated) scores
- Population/Disease: Children and adolescents with cerebral palsy; n=20, Age range of the sample: 8-14 years
Known-group validity:
ZaiNo CA (2004)
1- Measure/Groups of patients: Correlation with age (Spearman's correlation coefficient)
- A priori hypotheses: Not stated
- Were hypotheses confirmed: Not applicable
- Results: A significant correlation was found between TUDS score and age (r=-0.61; p<0.001)
- Population/Disease: Children and adolescents with typical development (TD); n=27, Age range of the sample: 8-14 years
2- Measure/Groups of patients: Correlation with age (Spearman's correlation coefficient)
- A priori hypotheses: Not stated
- Were hypotheses confirmed: Not applicable
- Results: A significant correlation was found between TUDS score and age (r=-0.41; p=0.018)
- Population/Disease: Children and adolescents with cerebral palsy (CP); n=20, Age range of the sample: 8-14 years
3- Measure/Groups of patients: Correlation with age (Spearman's correlation coefficient)
- A priori hypotheses: Not stated
- Were hypotheses confirmed: Not applicable
- Results: A significant correlation was found between TUDS score and age (r=-0.75; p=0.010)
- Population/Disease: Higher functioning children and adolescents with CP (level 1 on the Gross Motor Function Classification Scale: GMFCS); n=9, Age range of the sample: 8-14 years
KNown-groups validity
1- Measure/Groups of patients: Three groups (children aged 8-10 years: n=14; 11-12 years: n=6; 13-14 years: n=7)
- A priori hypotheses: Not stated
- Were hypotheses confirmed: Not applicable
- Results:
Significant differences in TUDS score were found between the three age groups (Kruskal-Wallis ANOVA: χ2(2)=9.80; p=0.007)
A significant difference in TUDS score was found between the 8-10 years and the 11-12 years age groups (Mann-Whitney U test: data Not shown; p=0.020)
A significant difference in TUDS score was found between the 8-10 years and the 13-14 years age groups (Mann-Whitney U test: data Not shown; p=0.001)
- Population/Disease: Children and adolescents with TD; n=27, Age range of the sample: 8-14 years
2- Measure/Groups of patients: Three groups (children with TD: n=27; children with CP (GMFCS level 1): n=9; children with CP (GMFCS level 2/3): n=11)
- A priori hypotheses: Not stated
- Were hypotheses confirmed: Not applicable
- Results:
Significant differences in TUDS score were found between the three groups (Kruskal-Wallis ANOVA: χ2(2)=28.5; p<0.001)
Significant pair-wise differences in TUDS score were found between all groups (Mann-Whitney U tests: data Not shown; p<0.02)
- Population/Disease: Children and adolescents from a convenience sample; n=47, Age range of the sample: 8-14 years
Evidence of Translatability Assessment: None identified
Evidence related to missing data: None identified
Evidence for Selection of Recall Period: None identified
Evidence of Administration Instructions and Training Provided: None identified
Evidence of concurrent validity: Yes
Evidence of known-groups validity: Yes
Evidence of ability to detect change over time: None identified
Responder Thresholds
Evidence of responder thresholds: None identified
Reference(s) of development / validation
Zaino CA, Marchese VG, Westcott SL. Timed up and down stairs test: preliminary reliability and validity of a new measure of functional mobility. Pediatr Phys Ther. 2004 Summer;16(2):90-8 (PubMed abstract: https://pubmed.ncbi.nlm.nih.gov/17057533/)
Other references
See (PubMed results)
https://pubmed.ncbi.nlm.nih.gov/?term=%22TUDS%22&sort=date&sort_order=asc
Inclusion of the COA in product labelling
None identified
Existence of Scoring / Interpretation / User Manual
Original language and translations
Original: English
Translations:
None identified
References of translations
N/A
Condition of use: copyright
Copyright:
Not reported
CoU:
Not reported, please contact directly the author, Dr. Victoria G. Marchese (vmarchese@som.umaryland.edu)
Website
Not reported
Review copy
None identified