They interviewed people for initial four consecutive months then re-interviewed them after other four months.
The research evaluated three generation, namely, first, second, and third generation-plus. The first generation comprised of foreign-born Mexican immigrants according to the years in which they entered the United States. The second step entailed looking at the data of the Mexican children born in the United States to non-natives parents. The third generation-plus in the study encompassed native-born Mexicans of native parents, native-born but non-Hispanic whites of native parents, and native-born, non-Hispanic blacks of native-born parentage. The study then tabled the sample size of each group into weighted and un-weighted clusters (Waldiinger et al, 2007).
To collect data on employment, first, the research segregated immigrants who had already secured jobs from the jobless, employment seekers, and the ones who were not in work during the survey period. Researchers in this survey calculated the number of weeks in which the immigrants were in job. To get the data of those people who experienced long-term unemployment, the research looked at the records of men did have employment in a period of one year. In addition, the research analyzed the data of those people in one or more weeks of employment (Waldiinger et al, 2007).
Second, the research surveyed number of Mexicans on low-wages jobs coding them according to earnings. Researchers gave the low paid men code one zero the other men who had employment. To get information about pension and other benefits, the survey asked respondents whether their employers provided them with health insurance. In addition, the survey sought to know whether the health benefits covered the families of the employed people (Waldiinger, et al, 2007).
The survey employed multivariate analysis to approximate the net differences of job quality and holding among different groups. The researchers used statistical tools such