Definition
FPKNODIAFJMN indicates whether the man knows about the diaphragm, foam, or (spermacidal) jelly as methods for family planning. Some samples differentiate between spontaneous and probed affirmative responses; see Comparability. In probing questions, the diaphragm, foam, or jelly is often described by the following text:
Women can place a sponge, suppository, diaphragm, jelly, or cream inside themselves before intercourse.