Class Notes (807,462)
Canada (492,742)
Sociology (3,969)
SOC222H5 (88)

lecture one

9 Pages
Unlock Document

University of Toronto Mississauga
John Kervin

SOC 222 – MEASURING THE SOCIAL WORLD INTRO to the COURSE Session #1 COURSE INFORMATION Job Skills: Statistics and Data Analysis Statistics: mathematical procedures that allow you to draw conclusions about your data Data Analysis: Using data and statistics to answer specific questions about the world Stats Anxiety Read chapter 2 in stats for the terrified text Rusty Arithmetic? **All squared numbers are positive (-x) = x 2 2 32 = 9 -3 = 9 Also check summation rules ∑ How to add up what follows the summation sign SPECIFIC COURSE INFORMATION 1. Lectures and tutorials • Session outlines posted each week • Tutorial start time: • Tests in each tutorial • Password • Must attend the tutorial you registered in • Tests conducted on BlackBoard • Tests timed: 30 minute maximum 2. Questions 3. SPSS CONTEXT of TODAY’S SESSION Today’s Objectives: Know 1. The four different levels of measurement 2. Rounding numbers 3. Significant digits 4. How to open an SPSS Data Set 5. Variables and cases in a data set 6. Difference and use of Data View and Variable View 7. Difference between Variable Name and Variable Label 8. How to get a frequency distribution 9. How to get a scatterplot Terms to Know Statistics Data analysis Levels of measurement Ratio variables Ordinal variables Nominal variables Dichotomous variables Significant digits Trailing zeroes Leading zeroes Research question Independent variable Dependent variable Frequency distribution Scatterplot Positive and negative relationships LEVELS of MEASUREMENT What is “level of measurement”?- covered in both texts, pg.17-20 and 31-33- limerman is better Numbers can be seen in 4 different levels Ratio • Counts or quantities – ex. Age in years, age in days, hours ect.. all ratio measures. Number of courses a school offers, number of cities in Ontario ect… • Meaningful “zero”- means none • Math: • Add, subtract, multiply, divide – can do arithmetic with them, because of the meaningful zero • Rank order • Compare • Ratio indicate the amount and quantity Ordinal • Relative quantities • Math: • Rank order (1, 2, 3..) • Compare – can compare persons or things, who has more who has less • Indicate rank orders, bigger number means there’s more and smaller means there’s less, there’s order • Occupational risk- how much chance of something happening to you being in that occupation Nominal • Similarities and differences • Math: • Compare • No ranked order, all we can say is if they’re the same or similar or different • Ex. If you assign numbers to religions that’s a nominal • Mathematically all we can do with these numbers is compare them • Just indicate whether two cases are the same or different Dichotomy • Only two categories – male or females, yes or no • Can be simplifications • Math: • Add, subtract, multiply, divide • Rank order • Compare • We can treat them as nominal or as ordinal • Can also be treated as ratio measures- you can say you have it or you don’t, if you don’t then you have measure of zero- there’s natural zero point • Can be REALLY useful in stats • Called DUMMY variables Why Does This Matter? • Stats involves mathematical operations, what you can do with them depends on their measure • What you can do with some numbers are different than what you can do with others • Level of measurement- HANDLING NUMBERS Rounding Significant Digits Leading zeroes Trailing zeroes RELATIONSHIPS Research question Independent variable Dependent variable USING SPSS 1. Opening a Data Set Here are the steps for opening and running SPSS from a computer lab: 1. Turn on computer & monitor screen (if dark, press any key) 2. CNTL-ALT-DEL to log on with your username and password 3. You get a welcome screen, “Preparing your desktop…” 4. Three ways to get to SPSS: 1. Click on an SPSS data set to open it. 2. Open SPSS first 5. If you get a “Windows Script Host” notice window, just close it. 6. SPSS starts and gives you a Welcome Window. Delete it. 2. SPSS Data Sets A data set consists of rows (CASES) and columns (VARIABLE
More Less

Related notes for SOC222H5

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.