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SOC200H1 (95)
Lecture

Lecture

2 Pages
91 Views
Fall 2010

Department
Sociology
Course Code
SOC200H1
Professor
Alexandra Marin

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Every one one category exhaustive and mutually if they only fit in one category
Interval such as temperature in Celsius, must intervals are mostky ratio but have zeros
which mean zero f and c both have o but is not 0, Kelvin is ratio, age ratio
Repeated measure same value it is reliable, ranking is the same not same measure but
ranking stays the same, memory is bad, ppl forget how old they are not how old by the year
Make sure they are valid if it is capturing what r measuring, height reliable what u want to
measure, face valid does is look like a meaure u could use
Dont score high same as those who do score high poor critea
Construct how much it predicts something else concept predict high grades successful
carrers
Dont predict career success theory is wrong
Multiple concepts such as gang, more than one, identify
Sampling
Sample must give you variations, variations both variables
Get 10 criminals and 10 non criminals, cannot select sample on dependent variable,
dependent is effect, ok to select on independent variable, ok to select on cause variable both
not in textbook
Random sampling, pop equal chance of being selected, sampling frame and pop should be
same hard to get, sample ppl actually observe, evry unit in pop equal chosen into sample
have random sample, no one has a random sample reason is few, what create non random
sample pop not same as frame, response rates must be 100% everyone u ask must respond,
cant make them and some ppl choose not to, ppl who choose not to is not random
Whats not, stand corner ask to fill in survey, more commuters than residence, more classes
greter chance time of day ask randomly not random random do need a plan sample random
can calculate if its a fluke, cant prove bec of fluke, calc prop of fluke only willing tolerate
certain amount of fluke
Fluke tolerate is confidence level, conf interval 95 sure between two numbers
5 percent is the standard how much others will tolerate
Make lemonade, pitcher bucket and pool see if theres enough sugar , one glass, but not
homo must take more, size not effect amount of sample its homogenosity
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Description
Every one one category exhaustive and mutually if they only fit in one category Interval such as temperature in Celsius, must intervals are mostky ratio but have zeros which mean zero f and c both have o but is not 0, Kelvin is ratio, age ratio Repeated measure same value it is reliable, ranking is the same not same measure but ranking stays the same, memory is bad, ppl forget how old they are not how old by the year Make sure they are valid if it is capturing what r measuring, height reliable what u want to measure, face valid does is look like a meaure u could use Dont score high same as those who do score high poor critea Construct how much it predicts something else concept predict high grades successful carrers Dont predict career success theory is wrong Multiple concepts such as gang, more than one, identify Sampling Sample must give you variations, variations both variables Get 10 criminals and 10 non criminals, cannot select sample on dependent variable, dependent is effect, ok to select on independent variable, ok to select on cause variable both not i
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