1Lab%20Homework%203

1Lab%20Homework%203 - SYA 4300: METHODS OF SOCIAL RESEARCH...

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SYA 4300 : METHODS OF SOCIAL RESEARCH Fall 2011 Lab Homework #3 50 Points Due: Friday October 21, Midnight (11:59:59pm) Age and period differences in verbal ability 1. Report the mean, median, minimum, maximum, and frequency distribution of the variable wordsum (see next page for description from the codebook). 2. Recode year into a new variable called decade . Do this by coding the following year ranges into the specified categories and labelling them accordingly: (1972/1979 = 1 “70s”) (1980/1989 =2 “80s”) (1990/1999 = 3 “90s”) (2000/2006 = 4 “00s”). Report the mean and standard deviation of wordsum by decade ? Is there any trend in the mean? In the standard deviation? 3. Recode age into a new variable called agegroup , this time using age ranges of 18-34, 35-50, 51- 64, and 65-89. Report the mean and standard deviation of wordsum by agegroup . Is there any trend in the mean? In the standard deviation? 4.
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1Lab%20Homework%203 - SYA 4300: METHODS OF SOCIAL RESEARCH...

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