variability of the original eight variables, which has greater variability than Factor 2
(15.50% of the variability). Hence, the weights in Factor 1 for all eight variables are
combined into one index "quality of life" instead of combining them into each index7.
The new variable has a range between 0 and 6.65, an interval of 92. The mean score of
quality of life for the sample population is 1.8656.
Health Related Factors
Each woman provided health related information on prenatal care, type of place
child born, use of immunizations, and breastfeeding about her children from the youngest
to the 5th youngest (e.g., whether or not the respondent had prenatal care when she was
pregnant the youngest child, whether or not had prenatal care when she was pregnant the
second youngest child, and so on.) Hence, all respondents have five variables for each
question. Each variable are dichotomized into 1 and 0. Since the number of children is
different among mothers, five dichotomous variables of a certain question are combined
and averaged out for creating a variable. For instance, in the case of prenatal care, if a
woman had two children and had prenatal care when she was pregnant the youngest child
(coded 1), but she did not receive prenatal care for her second youngest child (coded 0),
and then her prenatal care history is 0.5. These newly created variables are considered as
child health care histories of mothers.
17 I once constructed two variables for each factor; Factor 1 = luxury items and Factor 2 = consumer
durables. However, the means test for luxury life by ethnicity indicated that East Indians are higher in
quality of life on luxury items than Africans (sig.=.031), and the means test for consumer durables by
ethnicity showed that Africans are slightly higher than East Indians with no statistical significance. To
simplify the analyses and to enhance the magnitude of 'quality of life' in addition to the reason which all
variables have the same positive directions in Factor 1, I decided to combine all variables' loadings for
creating the index of Quality of Life.