Psychometric Evaluation of the Timeline Followback for Exercise among Young Adults

<p><strong><em>Objectives:</em></strong> Two separate studies assessed psychometric properties of a retrospective behavioral measure adapted for exercise called the Timeline Followback for Exercise (TLFB-E). Study one examined criterion, convergent, and predictive validity. Study two examined test-retest reliability. <strong><em>Methods:</em></strong> Study one participants (<em>N </em>= 66) were college students 20.0 ± 1.4yr. Validity of frequency, intensity, time, and type of exercise as assessed on the TLFB-E was examined using Pearson <em>r</em> correlations with accelerometers, weekly exercise contracts between participants and researchers, College Alumni Questionnaire, and a health-related physical fitness battery. Study two participants were a separate sample (<em>N</em> = 40) of college students 18.63 ± 1.0yr. Pearson <em>r</em> correlations determined reliability of the TLFB-E for exercise frequency, intensity, and time between two interviews separated by one month. Kappa statistic determined reliability of the TLFB-E for type of exercise. <strong><em>Results:</em></strong> The TLFB-E displayed criterion validity when compared to accelerometers (<em>r</em>s = .35 to .39) and convergent validity when compared to weekly exercise contracts (<em>r</em>s = .65 to .80) and College Alumni Questionnaire (<em>r</em>s = .06 to .75). The TLFB-E displayed modest to adequate test-retest reliability (<em>r</em>s = .79 to .97) for exercise frequency, intensity, and time and moderate Kappa (k = .49) for exercise type. <strong><em>Conclusions:</em></strong> The TLFB-E is a reliable and valid measure of physical activity and improves upon quantity-frequency methods by enabling collection of the exercise components of an individual’s daily physical activity over a specified time period.</p>

Name thesis:degree_name

Master of Arts

Discipline thesis:degree_discipline

Kinesiology

Year dc:date.available

2011

Author dc:creator

• Panza, Gregory A

Contributors dc:contributor

• Lawrence E. Armstrong; Jeremiah Weinstock
• Linda S. Pescatello

• physical activity assessment
• validity
• reliability
• college students
• health behavior

Repository record dc:identifier

https://digitalcommons.lib.uconn.edu/gs_theses/201

OAI identifier oai:identifier

oai:digitalcommons.lib.uconn.edu:gs_theses-1236