Wednesday, August 12, 2009

2. Methodology

On Friday 10th july 2009, we gathered at NYP SHS Block J to collect data for our study. The data collection procedure was as follows:

1. A digital weighing scale was set up.
2. A tape measure was set up against a door, and was made to be as perpendicular to the floor as possible.
3. By using only one weighing balance and one tape measure for all subjects, standardization was ensured.
4. Then, we gathered 30 willing subjects who gave their verbal consent to have their weights and heights taken.
5. Each subject had their weight and height taken 3 times.
6. The readings were written down and then entered into SPSS for further processing.


To measure the weight, each subject stood on the digital weighing scale 3 times and an appointed group member jotted down each measurement. Another group member was also there to double check that each reading was read correctly.

On the other hand, to measure the height, each subject was instructed to stand with his back straight against the tape measure that was set up, and an appointed group member measured the height from base of feet to top of head. Once again, an extra group member was there to double check that the reading was read correctly. This procedure was repeated 3 times.

All these readings were entered in to SPSS and an average of each subject's 3 weight readings and 3 height readings were calculated and ready to be analysed.

Note: No person rejected when approached to be a subject for this study.
Note: No reading was rejected.

These are the photos taken during the data collection. Enjoy.


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