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2016, Number 2

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Revista Cubana de Salud Pública 2016; 42 (2)

Validation of a questionnaire for quantification of backache in school children

Cruz MR, Zagalaz-Sánchez ML, Molero D, Cachón-Zagalaz J

Language: Spanish
References: 30
Page: 224-235
PDF size: 167.56 Kb.


ABSTRACT

Objective: To validate an easy, rapid and reliable measuring instrument that allows the access to quantitative information about backache that the child population could suffer.
Methods: Non-experimental, cross-sectional, quantitative and descriptive study in which 153 school children (80 boys and 73 girls) from the third cycle of primary education and secondary education participated. They answered a questionnaire about backache by using a visual analogue scale. All of them were taken their anthropometric measures and their means to carry the school materials. The phase of didactic and contents validation was performed by expert judges whereas the internal consistency of the questionnaire expressed as Cronbach's Alpha was high (0.809).
Results: The correlations between the items were very significant (p ‹ 0.001), except in one case (p › 0.05). The rate of the Kaiser-Meyer-Olkin's of Sampling Adequacy Measure (p ‹ 0.0001), indicates the possibility of making a factor analysis from which we can obtain a factor called Backache, explaining 58.46 % of the total variance, and this instrument finally was one-dimensional.
Conclusions: The questionnaire proves to be a valid and reliable instrument for quantitative data collection about backache in the field of health-related physical education area.


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