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![Page 1: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/1.jpg)
Course EvaluationsCourse Evaluations
You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course evaluations help future students decide which courses to take and they help the university make hiring, salary, and promotion decisions. Thank you in advance for making your voice heard. (Note: You will be asked to complete two evaluations for SOC101Y – one for Professor Brym, the other for Professor Green.)
![Page 2: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/2.jpg)
SOC101Y
Introduction to SociologyIntroduction to SociologyProfessor Adam GreenProfessor Adam GreenProfessor Robert BrymProfessor Robert Brym
Lectures #20 & 21Lectures #20 & 21Research MethodsResearch Methods27 Mar & 3 Apr 327 Mar & 3 Apr 3
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OTTFFSSENTOTTFFSSENT
OO{ne}{ne}TT{wo}{wo}TT{hree}{hree}FF{our}, etc.{our}, etc.
ADGJMADGJM
AA{BC}{BC}DD{EF}{EF}GG{HI}{HI}JJ{KL}{KL}MM
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YOUTUBE clip on perception
• http://www.youtube.com/watch?v=Z8fhXAP8UBM
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How Research Filters How Research Filters PerceptionPerception
Values, Theories,Existing Research,
Methods
REALITY
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The Research CycleThe Research Cycle1.1. Figure out Figure out
what what matters to matters to youyou
2. Formulate a testable 2. Formulate a testable theorytheory (a tentative (a tentative explanation of a explanation of a phenomenon)phenomenon)
3. Review 3. Review existing existing literatureliterature
4. Select method(s)4. Select method(s)
6. Treat subjects ethically6. Treat subjects ethically 5. Collect data5. Collect data
7. Analyze 7. Analyze datadata
8. 8. Report Report resultsresults
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Thomas Nagel (1986)
“THERE IS NO VIEW FROM NOWHERE”
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The Research CycleThe Research Cycle1.1. Figure out Figure out
what what matters to matters to youyou
2. Formulate a testable 2. Formulate a testable theorytheory (a tentative (a tentative explanation of a explanation of a phenomenon)phenomenon)
3. Review 3. Review existing existing literatureliterature
4. Select method(s)4. Select method(s)
6. Treat subjects ethically6. Treat subjects ethically 5. Collect data5. Collect data
7. Analyze 7. Analyze datadata
8. 8. Report Report resultsresults
![Page 9: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/9.jpg)
Research EthicsResearch Ethics1. Respect your subjects’ right to safety. Do your
subjects no harm and, in particular, give them the right to decide whether and how they can be studied.
2. Respect your subjects’ right to informed consent. Tell subjects how the information they supply will be used and allow them to judge the degree of personal risk involved in supplying it.
3. Respect your subjects’ right to privacy. Allow subjects the right to decide whether and how the information they supply may be revealed to the public.
4. Respect your subjects’ right to confidentiality. Refrain from using information in a way that allows it to be traced to a particular subject.
5. Do not falsify data. Report findings as they are, not as you would like them to be.
6. Do not plagiarize. Explicitly identify, credit, and reference authors when making use of their written work in any form, including Web postings.
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The Research CycleThe Research Cycle1.1. Figure out Figure out
what what matters to matters to youyou
2. Formulate a testable 2. Formulate a testable theorytheory (a tentative (a tentative explanation of a explanation of a phenomenon)phenomenon)
3. Review 3. Review existing existing literatureliterature
4. Select method(s)4. Select method(s)
6. Treat subjects ethically6. Treat subjects ethically 5. Collect data5. Collect data
7. Analyze 7. Analyze datadata
8. 8. Report Report resultsresults
![Page 11: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/11.jpg)
Research EthicsResearch Ethics1. Respect your subjects’ right to safety. Do your
subjects no harm and, in particular, give them the right to decide whether and how they can be studied.
2. Respect your subjects’ right to informed consent. Tell subjects how the information they supply will be used and allow them to judge the degree of personal risk involved in supplying it.
3. Respect your subjects’ right to privacy. Allow subjects the right to decide whether and how the information they supply may be revealed to the public.
4. Respect your subjects’ right to confidentiality. Refrain from using information in a way that allows it to be traced to a particular subject.
5. Do not falsify data. Report findings as they are, not as you would like them to be.
6. Do not plagiarize. Explicitly identify, credit, and reference authors when making use of their written work in any form, including Web postings.
![Page 12: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/12.jpg)
The Research CycleThe Research Cycle1.1. Figure out Figure out
what what matters to matters to youyou
2. Formulate a testable 2. Formulate a testable theorytheory (a tentative (a tentative explanation of a explanation of a phenomenon)phenomenon)
3. Review 3. Review existing existing literatureliterature
4. Select method(s)4. Select method(s)
6. Treat subjects ethically6. Treat subjects ethically 5. Collect data5. Collect data
7. Analyze 7. Analyze datadata
8. 8. Report Report resultsresults
![Page 13: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/13.jpg)
Participant ObservationParticipant Observation
Researchers engage in participant observation when they try to observe a social milieu from an outsider’s point of view and take part in the activities of their subjects (allowing them to understand the point of view of their subjects).
They must avoid influencing their subjects’ behaviour (reactivity or the Hawthorne effect).
Most participant-observation studies begin as exploratory research in which the researcher uses hunches as hypotheses (unverified but testable statements derived from theories).
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SIDEWALK - Mitch Duneier
http://www.youtube.com/watch?v=Bv4civR8mSI
http://www.youtube.com/watch?v=J2KDgvwGFeQ
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Participant ObservationParticipant Observation
Researchers engage in participant observation when they try to observe a social milieu from an outsider’s point of view and take part in the activities of their subjects (allowing them to understand the point of view of their subjects).
They must avoid influencing their subjects’ behaviour (reactivity or the Hawthorne effect).
Most participant-observation studies begin as exploratory research in which the researcher uses hunches as hypotheses (unverified but testable statements derived from theories).
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MeasurementMeasurement Variables are concepts that can take more than one
value. Operationalization involves establishing criteria for
assigning values to variables. If a measurement procedure yields consistent results,
we consider it reliable. If a measurement procedure measures what it is
supposed to, we consider it valid (and it has external validity if it is consistent with what we know from previous research or allows us to make useful predictions).
If research findings hold in many contexts, we consider them generalizable.
Causality is the measurement of causes and their effects.
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Measurement as Target Measurement as Target PracticePractice
x xx x
xxxx
Validity, reliability, and generalizability may be explained by drawing an analogy between measuring a variable and firing at a bull’s-eye. In case 1, above, shots (measures) are far apart (not reliable) and far from the bull’s-eye (not valid). In case 2, shots are close to each other (reliable) but far from the bull’s-eye (not valid). In case 3, shots are close to the bull’s-eye (valid) and close to each other (reliable). In case 4, we use a second target. Our shots are again close to each other (reliable) and close to the bull’s-eye (valid). Because our measures were valid and reliable for both the first and second targets in cases 3 and 4, we conclude our results are generalizable.
x xx x
xxxx
1.Not Valid, Not Reliable 2. Not Valid, Reliable
3. Valid, Reliable 4. Valid, Reliable, Generalizable (Target 2)
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Course EvaluationsCourse Evaluations
You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course evaluations help future students decide which courses to take and they help the university make hiring, salary, and promotion decisions. Thank you in advance for making your voice heard. (Note: You will be asked to complete two evaluations for SOC101Y – one for Professor Brym, the other for Professor Green.)
![Page 20: Course Evaluations You will be asked to complete course evaluations on-line during the last two weeks of classes. It is important that you do so. Course.](https://reader035.fdocuments.net/reader035/viewer/2022062805/5697bff51a28abf838cbd667/html5/thumbnails/20.jpg)
SOC101Y
Introduction to SociologyIntroduction to SociologyProfessor Adam GreenProfessor Adam GreenProfessor Robert BrymProfessor Robert Brym
Lectures #20 & 21Lectures #20 & 21Research MethodsResearch Methods27 Mar & 3 Apr 327 Mar & 3 Apr 3
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SamplingSamplingA sample is part of a group.A population is the entire group.A voluntary response sample is a group of people who chose themselves in response to a general appeal. A representative sample is a group is a group of people chosen so their characteristics closely match those of the population of interest. A convenience sample consists of people who are easiest to reach. If respondents are chosen at random and an individual’s chance of being chosen is known and greater than zero, the respondents constitute a probability sample.A sampling frame is a list of all the people in the population of interest. A randomizing method is a way of ensuring every person in the sampling frame has a known, equal, and non-zero chance of being selected.
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Sampling Error ISampling Error I
48% Conservatives ---------{-------
X-------}------------------- 2.5% margin of error
50%
Liberals ---------------{-------X-------}-------------
2.5 % margin of error
Because the sample measures fall within Because the sample measures fall within overlapping overlapping margins of error, we conclude that the measured margins of error, we conclude that the measured difference in the popularity of the two parties is difference in the popularity of the two parties is notnot statistically significant.statistically significant.
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Sampling Error IISampling Error II
48% Conservatives ---------{-------
X-------}------------------- 2.5% margin of error
55%
Liberals -------------------------{-------X------} 2.5 % margin of error
Here, the sample measures fall Here, the sample measures fall outsideoutside the margins of the margins of error, so we conclude that the measured difference in error, so we conclude that the measured difference in the popularity of the two parties the popularity of the two parties isis statistically statistically significant.significant.
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SurveysSurveys A mail questionnaire is a form containing
questions is mailed to the respondent and returned to the researcher through the mail system.
The response rate is the number of people who answer the questionnaire divided by the number of people asked to do so, expressed as a percent.
In a face-to-face interview survey, questions are presented to the respondent by the interviewer during a meeting.
In a telephone survey, questions are presented to the respondent by the interviewer over the phone.
A closed-ended question provides the respondent with a list of permitted answers.
Open-ended questions allow respondents to answer questions in their own words.
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Threats to ValidityThreats to Validity
Undercounting occurs due to an imperfect sampling frame.
Nonresponse occurs when respondents do not answer some or all questions.
Response bias occurs when respondents do not answer questions completely accurately.
To avoid wording effects, questions should be specific, simple and neutral, and they should focus on important, singular, current events.
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more than 10 hours TV per week and no
act of physical violence per year
10 or fewer hours TV per
week and at least 1 act of physical violence
per year
10 or fewer hours TV per
week and no act of physical violence per
year
Turning a Classroom into a Turning a Classroom into a Contingency TableContingency Table
(a cross-classification of cases by at least two (a cross-classification of cases by at least two variables)variables)
more than 10 hours TV per week and at
least 1 act of physical violence per year
BACK
LEFT
FRONT
RIGHT
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TV Viewing By Aggressiveness TV Viewing By Aggressiveness (in percent)(in percent)
TV Viewing
< 10hrs/wk
10+hrs/wk
percentagedifference
Aggressive-ness
<1 violent act/yr
52 46 6
1+ violentact(s)/yr
48 54 6
total frequency (n)
130 70
total percent 100 100
Measures strength of association
Number of cases ineach column
Percent of cases ineach column
Percent of cases in each column that fall into a category of each row variable.
Step 1: Note the direction in which the table is percentaged.
COL ROWUMN
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TV Viewing By Aggressiveness TV Viewing By Aggressiveness (men only)(men only)
TV Viewing
< 10hrs/wk
10+hrs/wk
percentagedifference
Aggressive-ness
<1 violent act/yr
40 40 0
1+ violent act(s)/yr
60 60 0
totalfrequency (n)
50 50
total percent 100 100
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Testing an Association forTesting an Association forSpuriousnessSpuriousness
(1) We believe there is a causal relationship between TV viewing and aggressiveness:
TV viewing Aggressiveness(independent variable) (dependent variable)
(2) By controlling for gender we can see whether gender has created a spurious association between TV viewing and aggressiveness:
TV viewing(independent variable)
Respondent’s gender(control variable)
aggressiveness(dependent variable)
(association)
(association)
(association)
(no association)
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Find the independent, dependent, and control variables in the
following slides:
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Number of Sex Partners by Respondent’s Sex (in %)
respondent’s sex male female
number of sex partners
0 or 1 79 90
more than 1 21 10
total 100 100
n 1,004 1,233
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Number of Sex Partners by Respondent’s Sex, Married People Only (in %)
respondent’s sex malefemale
number of sex partners0 or 1 95 99more than 1 5 1total 100 100n 499 534
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Ratio of non-white to white and black to white income for men working full-time
Ratio of non-white to white income
Ratio of black to white income
All men .80 .70
All men born in Canada
.90 .80
All men born in Canada with university education
1.00 .90
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Female/male earnings ratio
Marital status
On average among full-time workers, On average among full-time workers, women earn three-quarters of what men women earn three-quarters of what men earn. However:earn. However:
Implies that part of the original relationship between income and gender is due to marital status.