Construct Validity and Test-Retest Reliability of the Questionnaire Rising and Sitting Down in Lower-Limb Amputees

Fred A. de Laat; Gerardus M. Rommers; Jan H. Geertzen; Leo D. Roorda

doi:10.1016/j.apmr.2011.03.016

Construct Validity and Test-Retest Reliability of the Questionnaire Rising and Sitting Down in Lower-Limb Amputees

Fred A. de Laat^*, Gerardus M. Rommers, Jan H. Geertzen, Leo D. Roorda

^*Corresponding author for this work

EXtremities Pain Active lifestyle aNd Disability (EXPAND)

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Abstract

de Laat FA, Rommers GM, Geertzen JH, Roorda LD. Construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down in lower-limb amputees. Arch Phys Med Rehabil 2011;92:1305-10.

Objective: To investigate the construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down (QR&S), a patient-reported measure of activity limitations in rising and sitting down, in lower-limb amputees.

Design: Cross-sectional study.

Setting: Outpatient department of a rehabilitation center.

Participants: Lower-limb amputees (N=171; mean age +/- SD, 65 +/- 12y; 71% men; 83% vascular cause) participated in the study, 33 of whom also participated in the reliability study.

Interventions: Not applicable.

Main Outcome Measures: Construct validity was investigated by testing 8 hypotheses: limitations in rising and sitting down according to the QR&S would be: (1) greater in lower-limb amputees who are older, (2) independent of level of amputation, (3) greater in lower-limb amputees with a bilateral amputation, and (4) greater in lower-limb amputees who had rehabilitation treatment in a nursing home. Furthermore, limitations in rising and sitting down will be positively related to activity limitations according to (5) the Locomotor Capabilities Index (LCI), (6) the questions about rising and sitting down in the LCI, (7) the Climbing Stairs Questionnaire, and (8) the Walking Questionnaire. Construct validity was quantified with an independent t test and Pearson correlation coefficient. Test-retest reliability was assessed with a 3-week interval and quantified with the intraclass correlation coefficient (ICC), standard error of measurement, and smallest detectable difference (SDD).

Results: Construct validity (7 of 8 null hypotheses not rejected) and test-retest reliability were good (ICC=.84; 95% confidence interval, .65-.93; standard error of the measurement=6.7%; SDD=18.6%).

Conclusions: The QR&S has good construct validity and good test-retest reliability in lower-limb amputees.

Original language	English
Pages (from-to)	1305-1310
Number of pages	6
Journal	Archives of Physical Medicine and Rehabilitation
Volume	92
Issue number	8
DOIs	https://doi.org/10.1016/j.apmr.2011.03.016
Publication status	Published - Aug-2011

Keywords

Amputation
Disability evaluation
Questionnaires
Rehabilitation
MEASURING ACTIVITY LIMITATIONS
LOWER-EXTREMITY DISORDERS
PROSTHETIC PROFILE
HIERARCHICAL SCALE
CLIMBING STAIRS
WALKING ABILITY
HEALTH-STATUS
SELF-REPORT
AMPUTATION
MOBILITY

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@article{5ae28a70803a4847a372b5d111213b1a,

title = "Construct Validity and Test-Retest Reliability of the Questionnaire Rising and Sitting Down in Lower-Limb Amputees",

abstract = "de Laat FA, Rommers GM, Geertzen JH, Roorda LD. Construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down in lower-limb amputees. Arch Phys Med Rehabil 2011;92:1305-10.Objective: To investigate the construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down (QR&S), a patient-reported measure of activity limitations in rising and sitting down, in lower-limb amputees.Design: Cross-sectional study.Setting: Outpatient department of a rehabilitation center.Participants: Lower-limb amputees (N=171; mean age +/- SD, 65 +/- 12y; 71% men; 83% vascular cause) participated in the study, 33 of whom also participated in the reliability study.Interventions: Not applicable.Main Outcome Measures: Construct validity was investigated by testing 8 hypotheses: limitations in rising and sitting down according to the QR&S would be: (1) greater in lower-limb amputees who are older, (2) independent of level of amputation, (3) greater in lower-limb amputees with a bilateral amputation, and (4) greater in lower-limb amputees who had rehabilitation treatment in a nursing home. Furthermore, limitations in rising and sitting down will be positively related to activity limitations according to (5) the Locomotor Capabilities Index (LCI), (6) the questions about rising and sitting down in the LCI, (7) the Climbing Stairs Questionnaire, and (8) the Walking Questionnaire. Construct validity was quantified with an independent t test and Pearson correlation coefficient. Test-retest reliability was assessed with a 3-week interval and quantified with the intraclass correlation coefficient (ICC), standard error of measurement, and smallest detectable difference (SDD).Results: Construct validity (7 of 8 null hypotheses not rejected) and test-retest reliability were good (ICC=.84; 95% confidence interval, .65-.93; standard error of the measurement=6.7%; SDD=18.6%).Conclusions: The QR&S has good construct validity and good test-retest reliability in lower-limb amputees.",

keywords = "Amputation, Disability evaluation, Questionnaires, Rehabilitation, MEASURING ACTIVITY LIMITATIONS, LOWER-EXTREMITY DISORDERS, PROSTHETIC PROFILE, HIERARCHICAL SCALE, CLIMBING STAIRS, WALKING ABILITY, HEALTH-STATUS, SELF-REPORT, AMPUTATION, MOBILITY",

author = "{de Laat}, {Fred A.} and Rommers, {Gerardus M.} and Geertzen, {Jan H.} and Roorda, {Leo D.}",

year = "2011",

month = aug,

doi = "10.1016/j.apmr.2011.03.016",

language = "English",

volume = "92",

pages = "1305--1310",

journal = "Archives of Physical Medicine and Rehabilitation",

issn = "0003-9993",

publisher = "W B SAUNDERS CO-ELSEVIER INC",

number = "8",

}

TY - JOUR

T1 - Construct Validity and Test-Retest Reliability of the Questionnaire Rising and Sitting Down in Lower-Limb Amputees

AU - de Laat, Fred A.

AU - Rommers, Gerardus M.

AU - Geertzen, Jan H.

AU - Roorda, Leo D.

PY - 2011/8

Y1 - 2011/8

N2 - de Laat FA, Rommers GM, Geertzen JH, Roorda LD. Construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down in lower-limb amputees. Arch Phys Med Rehabil 2011;92:1305-10.Objective: To investigate the construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down (QR&S), a patient-reported measure of activity limitations in rising and sitting down, in lower-limb amputees.Design: Cross-sectional study.Setting: Outpatient department of a rehabilitation center.Participants: Lower-limb amputees (N=171; mean age +/- SD, 65 +/- 12y; 71% men; 83% vascular cause) participated in the study, 33 of whom also participated in the reliability study.Interventions: Not applicable.Main Outcome Measures: Construct validity was investigated by testing 8 hypotheses: limitations in rising and sitting down according to the QR&S would be: (1) greater in lower-limb amputees who are older, (2) independent of level of amputation, (3) greater in lower-limb amputees with a bilateral amputation, and (4) greater in lower-limb amputees who had rehabilitation treatment in a nursing home. Furthermore, limitations in rising and sitting down will be positively related to activity limitations according to (5) the Locomotor Capabilities Index (LCI), (6) the questions about rising and sitting down in the LCI, (7) the Climbing Stairs Questionnaire, and (8) the Walking Questionnaire. Construct validity was quantified with an independent t test and Pearson correlation coefficient. Test-retest reliability was assessed with a 3-week interval and quantified with the intraclass correlation coefficient (ICC), standard error of measurement, and smallest detectable difference (SDD).Results: Construct validity (7 of 8 null hypotheses not rejected) and test-retest reliability were good (ICC=.84; 95% confidence interval, .65-.93; standard error of the measurement=6.7%; SDD=18.6%).Conclusions: The QR&S has good construct validity and good test-retest reliability in lower-limb amputees.

AB - de Laat FA, Rommers GM, Geertzen JH, Roorda LD. Construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down in lower-limb amputees. Arch Phys Med Rehabil 2011;92:1305-10.Objective: To investigate the construct validity and test-retest reliability of the Questionnaire Rising and Sitting Down (QR&S), a patient-reported measure of activity limitations in rising and sitting down, in lower-limb amputees.Design: Cross-sectional study.Setting: Outpatient department of a rehabilitation center.Participants: Lower-limb amputees (N=171; mean age +/- SD, 65 +/- 12y; 71% men; 83% vascular cause) participated in the study, 33 of whom also participated in the reliability study.Interventions: Not applicable.Main Outcome Measures: Construct validity was investigated by testing 8 hypotheses: limitations in rising and sitting down according to the QR&S would be: (1) greater in lower-limb amputees who are older, (2) independent of level of amputation, (3) greater in lower-limb amputees with a bilateral amputation, and (4) greater in lower-limb amputees who had rehabilitation treatment in a nursing home. Furthermore, limitations in rising and sitting down will be positively related to activity limitations according to (5) the Locomotor Capabilities Index (LCI), (6) the questions about rising and sitting down in the LCI, (7) the Climbing Stairs Questionnaire, and (8) the Walking Questionnaire. Construct validity was quantified with an independent t test and Pearson correlation coefficient. Test-retest reliability was assessed with a 3-week interval and quantified with the intraclass correlation coefficient (ICC), standard error of measurement, and smallest detectable difference (SDD).Results: Construct validity (7 of 8 null hypotheses not rejected) and test-retest reliability were good (ICC=.84; 95% confidence interval, .65-.93; standard error of the measurement=6.7%; SDD=18.6%).Conclusions: The QR&S has good construct validity and good test-retest reliability in lower-limb amputees.

KW - Amputation

KW - Disability evaluation

KW - Questionnaires

KW - Rehabilitation

KW - MEASURING ACTIVITY LIMITATIONS

KW - LOWER-EXTREMITY DISORDERS

KW - PROSTHETIC PROFILE

KW - HIERARCHICAL SCALE

KW - CLIMBING STAIRS

KW - WALKING ABILITY

KW - HEALTH-STATUS

KW - SELF-REPORT

KW - AMPUTATION

KW - MOBILITY

U2 - 10.1016/j.apmr.2011.03.016

DO - 10.1016/j.apmr.2011.03.016

M3 - Article

SN - 0003-9993

VL - 92

SP - 1305

EP - 1310

JO - Archives of Physical Medicine and Rehabilitation

JF - Archives of Physical Medicine and Rehabilitation

IS - 8

ER -

Construct Validity and Test-Retest Reliability of the Questionnaire Rising and Sitting Down in Lower-Limb Amputees

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