Psychometric Evaluation of Three Psychosocial Measures Associated With Physical Activity Among Adolescent Girls.
Jiying Ling, Lorraine B Robbins
PMID 28030983WHAT IT FOUND
Short surveys of adolescent girls’ perceived benefits, barriers, and enjoyment of physical activity held up across separate samples and could help school nurses tailor advice about activity.
Key findings
01The 10-item benefits survey was stable one week later in 91 girls.
02The barriers and enjoyment surveys gave similar scores when repeated.
03Higher psychosocial benefit scores were linked with more later activity, while higher physical benefit scores were linked with less.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The results apply mainly to urban low-SES 5th to 8th grade girls, so they may not fit other settings or age groups. Other minority groups, such as American Indian, Asian, or Native Hawaiian girls, were underrepresented. The test-retest sample did not include height, weight, or physical activity measurement, so stability cannot be checked against activity in that group. The intervention and control groups differed at baseline, including racial composition and average moderate-to-vigorous activity, which may affect comparisons. The benefits scale was shortened by removing item 1 based on this data set, so the final 10-item version needs confirmation in new samples. The surveys were linked with activity, but the study did not show that using them changes nurse care or girls’ activity.
The easy way to misread this
Do not read these results as evidence that school-nurse counseling increases physical activity. The study tested surveys in urban low-SES middle-school girls and did not measure the effect of nurse-delivered advice.