Each column generally represents a single variable; however, one variable may span several columns. At the most basic level, a codebook describes the layout of the data in the data file and describes what the data codes mean. Codebooks are used to document the values associated with the answer options for a given survey question. Each answer category is given a unique numeric value, and these unique numeric values are then used by ...
The fetal attitude describes the position of the parts of your baby's body. The normal fetal attitude is commonly called the fetal position. 1  The head is tucked down to the chest.  The arms and legs are drawn in towards the center of the chest.
The OP position (occiput posterior fetal position) is when the back of babyâs head is against the motherâs back. Here are drawings of an anterior and posterior presentation. Look at this drawing. The posterior babyâs back is often extended straight, even arched, along the motherâs spine. posterior presentation aims the top of the head into the pelvis, i.e. oblong, rather than the circle of the crown. The anterior babyâs head enters the pelvis from the crown of the head first. The crown molds more easily.