Influence of Data Collection Mode on Self-Report Validity of Asthma Therapy Adherence



Status:Completed
Conditions:Asthma, Asthma, Pulmonary
Therapuetic Areas:Pulmonary / Respiratory Diseases
Healthy:No
Age Range:19 - 95
Updated:12/15/2017
Start Date:August 2002
End Date:May 2005

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Assessment Mode and Validity of Self-Reports in Adults

This study will examine how the assessment mode influences the validity of self-reported
adherence to asthma therapy. Self-reported adherence to asthma therapy data will be collected
using one of three randomized assessment modes (interview, computer, or telephone).

BACKGROUND:

Self-reports are a primary source of behavioral data. Studies have highlighted the variable
validity and reliability of self-report measures of health behaviors such as adherence to
therapy. Research on self-reports of sensitive information, such as sexual behavior and drug
use, suggests that the mode of data collection may enhance validity of self-reports. However,
no studies have determined how the mode of data collection influences self-reports when an
objective measure of the behavior is available.

DESIGN NARRATIVE:

The primary aim of this study is to examine the influence of the mode of data collection on
the validity of self-reports of inhaled anti-inflammatory medication adherence.

The key secondary outcomes of the study will attempt to answer the following questions: 1)
does the assessment mode influence self-reports of commonly used asthma outcome measures of
disease-related symptoms, self-management behaviors, and quality of life?; 2) does the
relationship between the assessment mode, the validity of self-reports of adherence, and
other measures (i.e., asthma symptoms, self-management behaviors, and quality of life) change
over time?; and 3) does the assessment mode interact with baseline personality
characteristics and mood to influence the validity of self-reports of adherence and other
outcome measures (i.e., asthma symptoms, self-management behaviors, and quality of life)?

Inclusion Criteria:

- Diagnosis of asthma

- Under a provider's care for asthma

- Prescribed daily inhaled corticosteroids (by metered dose inhaler [MDI]) at least 2
times a day

- Speaks English

- Otherwise in good general health

Exclusion Criteria:
We found this trial at
1
site
3400 N Charles St
Baltimore, Maryland 21205
410-516-8000
Johns Hopkins University The Johns Hopkins University opened in 1876, with the inauguration of its...
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from
Baltimore, MD
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