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.
1 Your baby floats in your uterus and changes positions often throughout early and mid-pregnancy. 2  When you're between 32 and 36 weeks pregnant, your baby usually rotates to a head-down position for labor and delivery. 3  Head-first position is called the vertex position. 4  Feet-first position is called the breech position. Your baby already might have settled into a head-down position in your pelvis, if this is your first pregnancy. 2  This is the ideal position for delivery because your baby's head is the biggest part of her body.