The variable physical fitness will be measured by the PACER test. This test was found to be valid and reliable by multiple recent and relevant studies (de Heer et al., 2011; Slusser et al., 2013; Wright et al., 2012). This test will be performed as the pretest and posttest to measure physical fitness. The PACER test will be completed as described in the manual provided by Nova Southeastern University (n.d). For children ages 6 to 9, a member of the research team will perform the PACER with the child to help guide them to perform the test correctly. To reduce the risk of retest bias, the recommended practice day will not be conducted. Instead, a member of the research team will perform the PACER test first as an example.
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The waist circumference will be measured by finding the right ilium and marking the site at the mid-axillary plane (CDC, 2007). Using measuring tape, one will measure the circumference from the right ilium around to the left ilium. The tape will remain parallel to the floor, and it will not compress the skin. The waist-hip ratio will be calculated by taking the value from the waist circumference measurement and dividing it by the measurement of the hip circumference. The hip circumference will be measured twice by using measuring tape around the largest circumference of the buttocks while maintaining the tape parallel to the floor (World Health Organization, 2011). With these measurement techniques there is a risk for interrater error. To reduce the risk, these measurements will be taken twice by two different members of the research team. If the two measurements are not the same, but they are relatively similar, the average will be calculated and accepted as the measurement used for the research study. Should the two measurements not be similar, the primary investigator will conduct the third measurement, which will be used instead of the two previous …show more content…
The dependent variables of physical fitness and nutritional knowledge are interval levels of measurement. The reason they are interval levels of measurement is because the test results are ranked, mutually exclusive, and there is meaning between one category value and another (Kim & Mallory, 2014). Other examples provided by Kim and Mallory (2014) of interval levels of measurement included scored tests and questionnaires, which is the nature of both the PACER test and ASSQ survey. The dependent variable of adiposity reduction is the continuous variable, ratio level of measurement. Kim and Mallory (2014) explain that the ratio level has, “a meaningful zero and equal proportion” between values (p.39). Examples provided by Kim and Mallory (2014) include height and weight, which are required in the calculations of BMI. WC and WHR are also within the ratio level of measurement, because of there is a meaningful zero in their measurements and the equal intervals between
Nutritional and health …show more content…
The waist circumference will be measured by finding the right ilium and marking the site at the mid-axillary plane (CDC, 2007). Using measuring tape, one will measure the circumference from the right ilium around to the left ilium. The tape will remain parallel to the floor, and it will not compress the skin. The waist-hip ratio will be calculated by taking the value from the waist circumference measurement and dividing it by the measurement of the hip circumference. The hip circumference will be measured twice by using measuring tape around the largest circumference of the buttocks while maintaining the tape parallel to the floor (World Health Organization, 2011). With these measurement techniques there is a risk for interrater error. To reduce the risk, these measurements will be taken twice by two different members of the research team. If the two measurements are not the same, but they are relatively similar, the average will be calculated and accepted as the measurement used for the research study. Should the two measurements not be similar, the primary investigator will conduct the third measurement, which will be used instead of the two previous …show more content…
The dependent variables of physical fitness and nutritional knowledge are interval levels of measurement. The reason they are interval levels of measurement is because the test results are ranked, mutually exclusive, and there is meaning between one category value and another (Kim & Mallory, 2014). Other examples provided by Kim and Mallory (2014) of interval levels of measurement included scored tests and questionnaires, which is the nature of both the PACER test and ASSQ survey. The dependent variable of adiposity reduction is the continuous variable, ratio level of measurement. Kim and Mallory (2014) explain that the ratio level has, “a meaningful zero and equal proportion” between values (p.39). Examples provided by Kim and Mallory (2014) include height and weight, which are required in the calculations of BMI. WC and WHR are also within the ratio level of measurement, because of there is a meaningful zero in their measurements and the equal intervals between