Non-parametric significance tests for two dependent samples are used when the researcher wants to study correlated, or matched, samples. This includes the before-after effect and matched paired studies:. McNemarâs test, Test of Marginal Homogeneity, the Sign test, and Wilcoxonâs signed rank test.
The modern family is a smaller family. It is no longer a joint family. Moreover the tendency is to have a smaller family and the contraceptives help in checking the birth.
There are four different types of families. There is the single-parent family, the nuclear family, the extended family, and the composite family.   Single parent family - Câ¦onsists of one parent (usually the mother). This family usually becomes the nuclear family, as this parent will typically remarry or become married. In this type of family, the parent must juggle costs for day care along with everything else on usually a fairly low income. Nuclear family - This is the typical family. It consists of a husband, wife, and their children. Extended family - This includes the nuclear family and their relatives, such as grandparents, uncles, aunts, and cousins. Composite family - This is much the same as a nuclear family, though it contains two or more nuclear families sharing a common spouse.