ࡱ>  /bjbj 4xx'Q%  %%%8]<,%7"n7p7p7p7p7p7p7$9s<777HHH6n7Hn7HH24 NfI%F3Z7707\36<J<,44|<6LH77P7< : Bouma, Soc 110 Handout #1, Data Analysis Project Investigating the Effect of Race and Gender on Earnings in the US For the past couple weeks, we have been discussing inequality in America. Often, we think of power and inequality - in terms of money. Who has more money, and thus, in general, more access to opportunities and resources? Who makes the most money, and who makes the least? Does income differ for men and women, and for whites and people of color? In this exercise, we will examine earnings data for all full-time workers in the US. The data come from the 2008 American Community Survey (ACS). You will be able to examine data for the nation as a whole, for Kentucky, and for a state of your choosing. LEARNING GOALS: A. Substantive: Students will be able to: 1. Discuss and write about the influence of race and gender on earnings, by examining 2008 American Community Survey data. They will be able to use data to explain whether men make more than women and whether whites earn more than people of color. 2. Use data to make national, regional and state comparisons in terms of earnings. Students will be able to compare Kentucky to the nation as a whole, in terms of income inequality, as well as comparing Kentucky to another state of their choosing. The data shown in the tables for this worksheet come from  HYPERLINK "http://ssdan.net/cgi-bin/webchip/webchip3-beta.cgi?webchip=datasets/pc/acs2008/Earn.dat" http://ssdan.net/cgi-bin/webchip/webchip3-beta.cgi?webchip=datasets/pc/acs2008/Earn.dat B. Methodological/Quantitative Skills: Students will acquire the following skills, related to data analysis: 1. Interpretation: Students will be able to: Read and report basic frequencies from a large data set Describe bivariate tables, both orally and in writing 2. Representation: Students will be able to: Take raw data in tabular form and create properly formatted and labeled tables 3. Application/Analysis: Students will be able to: manipulate variables in a large data set using a basic statistical package Identify independent and dependent variables Form hypotheses about the relationship between two variables Analyze relationship between two variables as presented in bivariate table. 4. Communication: Students will be able to: Present hypotheses and findings for relationship between two variables in informal presentation and in a paper that tells a story about the effects of race and gender on income, using numbers as evidence 5. Confidence: Students will feel more comfortable reading and discussing data from a table writing about and using percentages to make an argument VARIABLES: For this exercise, we will be examining the following variables: earnings, race, gender, and age. Although there are many ways in which each could be conceptualized, the following ways are those used by the U.S. Census Bureau and the Bureau of Labor Statistics: EARNINGS: Money a person makes from working, as wages, salary, or a form of self-employment, expressed as an annual amount SEX (Gender) - individuals self-identification as either male or female. AGE: - age divided into the following categories: 16-24, 25-34, 35-44, 45-54, 55-64, 65+ RACE (RaceLat) individuals self-identification as: Non-Hispanic White (NHwhite) all persons who indicated their race as white and not of Hispanic origin. Black all persons who indicated their race as black. Asian (or Pacific Islander) includes all persons who indicated their race or ethnicity as Chinese, Filipino, Japanese, Asian Indian, Korean, Vietnamese, Cambodian, Hmong, Laotian, Thai, or other Asian as well as Hawaiian, Samoan, Guamanian or other Pacific Islander. Hispanic persons of white or other races who identified themselves as Mexican, Puerto Rican, Cuban, or Other Spanish/Hispanic. This category can refer to ancestry, nationality group, lineage, or country of birth of the persons parents or ancestors before their arrival in the U.S. American Indian (AmIndian) all persons who classified themselves as American Indian, Eskimo or Aleut. Non-Hispanic Multiracial (NHMulti) any Non-Hispanic persons who identified as more than 1 race Non-Hispanic Other (NHOther) any Non-Hispanic persons of a single race that was not white, black, American Indian/Alaskan Native (AIAN), Asian or Pacific Islander FREQUENCIES: A frequency table gives an overall sense of the distribution of a particular variable or set of variables. Here are the frequencies for the variable RaceEth (race) for the ACS sample of full-time, year-round workers in 2008. RaceEth NHWhite Black Asian Hispanic AmIndian NHOther NHMulti 68.7 10.9 4.8 13.7 0.6 0.2 1.0 66,678,276 10,610,592 4,694,340 13,309,425 611,753 216,348 962,917  Note that the first row of data gives percentages, and the second row gives the total number. Thus, in the U.S., 66,678,276 fulltime, year-round workers in 2008 were Non-Hispanic white, which represents 68.7% of fulltime workers. Generally, for comparison purposes, we talk about percentages, rather than raw numbers. We see that about two-thirds of US full-time workers in 2008 were White, about 11% of all workers were Black, about 5% Asian, about 14% Hispanic, about half of 1% were American Indian, less than 1% were of an unlisted race, and 1% were multiracial. Now examine the frequencies for age, gender, and earnings below: Gender: Male Female 58.7 41.3 56,997,160 40,086,536  Earnings 15K 15-24K 25-34K 35-49K 50-69K 70-99K 100K+ 7.1 16.8 18.4 21.1 16.7 10.6 9.3 6,926,657 16,267,926 17,908,508 20,488,612 16,201,327 10,298,154 8,992,485  Age 16-24 25-34 35-44 45-54 55-64 65+ 7.4 22.6 26.3 26.6 14.6 2.5 7,224,498 21,986,020 25,493,212 25,789,968 14,179,508 2,410,448  Answer the following: What percentage of all full-time workers are men? __________ What percentage of all full-time workers make less than $15,000? ____________ Less than $25,000: _____________ More than $50,000? _______ What percentage of all full-time workers are 16-24? _________ older than 65? _________ Now describe these frequencies in easily understood English. In other words, how would you describe all full-time workers in the year 2008? Now you get to be the sociologists. You can see that about 23.9% of all full-time workers make less than $25,000. Who are they? About 25% of all full-time workers make more than $50,000. Who are they? Are they men or women? Are they Whites, Blacks, Hispanics? Which age group makes the most? The least? Begin by making hypotheses about what you expect to find: HYPOTHESES: GENDER: __________ will have higher incomes than _______________. RACE: _____________ will have the highest incomes, and _____________ will have the lowest. AGE: People in the age group ___________ will earn the most money, and people in the ______ age group will earn the least. In order to investigate your hypotheses, you will need to do cross-tabulations, also called bivariate tables. In a cross-tabulation, you are simply exploring the association between two variables. Before running these, think about what you really want to know. It makes sense to say that a persons gender affects his or her earnings. It does not make sense to say that earnings affect a persons gender. The following two definitions are important: INDEPENDENT VARIABLE (X) - the variable that influences or affects another variable DEPENDENT VARIABLE (Y) the variable that is influenced by, or depends upon, another variable You can write the relationship between the two as X ( Y . In this case, we are interested in how gender influences earnings. Gender would be the independent variable (X), and earnings would be the dependent variable (Y). In other words, earnings to some extent, depend on gender: Independent Dependent Variable ( variable X ( Y Gender ( Earnings Below is a bivariate table (cross-tabulation) of gender and earnings: Earning/Gender Male Female TOTAL 15K 5.7% 9.2% 7.1% 15-24K 14.0% 20.6% 16.8% 25-34K 16.3% 21.5% 18.4% 35-49K 20.7% 21.7% 21.1% 50-69K 18.2% 14.5% 16.7% 70-99K 12.6% 7.7% 10.6% 100K+ 12.5% 4.7% 9.3% TOTAL 100% 56,997,160 100% 40,086,536 From this table, we can see that female full-time workers typically make less than male full-time workers. For example, 29.8% of women make $25,000 or less, compared to only 19.7% of men. By contrast, 25.1% of full-time male workers make $70,000 or more, compared to only 12.4% of women. Note how I have described the data. I started with a broad, generalized statement: female full-time workers typically make less than male full-time workers. Then I used specific statistics from the table to make my case. Note that since I percentaged down the rows, and I compared across the columns. In other words, I compared percentages across men and women. Now lets examine the influence of race on earnings: 2008 Earnings by Race for U.S. Full-time Civilian Workers, ACS NHWhite Black Asian Hispanic AmIndian NHOther NHMulti TOTAL 15K 5.5% 9.5% 6.2% 13.5% 11.6% 10.1% 7.5% 7.1% 15-24K 13.5% 21.8% 14.8% 29.4% 24.2% 20.9% 17.3% 16.8% 25-34K 17.5% 22.6% 15.2% 21.0% 21.5% 21.0% 20.0% 18.4% 35-49K 21.8% 22.1% 18.4% 17.7% 20.1% 18.8% 21.9% 21.1% 50-69K 18.5% 13.9% 16.9% 10.3% 12.6% 13.4% 16.4% 16.7% 70-99K 12.1% 6.8% 14.7% 5.0% 6.3% 9.2% 9.7% 10.6% 100K+ 11.2% 3.3% 13.8% 3.1% 3.6% 6.6% 7.1% 9.3% TOTAL 100% 66,678,276100% 10,610,592 100% 4,694,340100% 13,309,425100% 611,753100% 216,348100% 962,91797,083,651 When interpreting this table, you are going to want to compare ACROSS the categories (e.g. compare Whites to Blacks), not down the categories. To make comparisons easier, you might want to combine some categories. Which categories make the most sense to combine? How would you do this? On a new sheet of paper, write a brief description of race differences in earnings.  This exercise is based on a module developed by Tim Thornton, SUNY-Brockport.     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