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Lecture

SOCI W12 PPoint note reinterpret.docx

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Department
Sociology
Course
SOCI 217
Professor
Amin Ghaziani
Semester
Winter

Description
[SURVEY] 2 Characteristics of a Survey - asking the same questions to a lot of people - measures individuals based on a handful of survey Goals - to find pattern - to describe variables Disadvantages - cannot make causal statement or predictions - hard to make questions 3 Types of Survey Type Self- Administered Telephone Face-to-Face Ques. Interviews Cost - cheap - expensive - expensive Response - low - high response rate - high response rate Rate - fast response Advantage - easy for personal use, - interviewer can clarify - very flexible can get lots of people identity (interviewer can expand variables) Disadvantag - can’t clarify confusing- not many people use - social desirability bias, e questions landline anymore time consuming, no anonymity Guidelines for Writing Questions - use simple words and grammar - avoid leading questions - Choose words carefully  neutral language, no emotional language, order matters (how the questions are arranged) - Avoid double-barreled questions  responses given can be conflicting - Avoid negative items - Direct versus indirect question  “Are you sexist?”  instead, you can rephrase the question if you want to measure how sexist a person is - Use multiple questions per concept Response Categories 1) Type of Measures: Nominal, Ordinal, Ratio, interval 2) Open (valid) versus Closed (reliable) ended responses 3) Exclusive and Exhaustive Answers: exclusive can pick only one answer, exhaustive can pick any answers that fit 4) Contingency: Have you ever go drinking? If yes, please proceed to…, If no, please proceed to… 5) Matrix: Likert scale. Basically anything with scale [EXPERIMENTAL DESIGNS] - Purpose: To test hypothesis (H – 0o relationship between x and y and H – th1re is a relationship between x and y) - Goal: To identify causal relationships [3 KEY FEATURES] 1) Independent Variable (IV): Present-Absence dichotomous variable, whether or not the variables exist 2) Dependent Variable (DV): pre-test (to get base line) and post-test (to measure against base line) 3) Constant:  Have to have 2 types of groups: experimental and control  Identical settings  Identical groups  this is determined by using Random Assignment or Matching Random Assignment Matching Probability of -EPSEM (equal probability -Unequal probability Selection to be selected) Sample Size -Large n -Small n Benefit: helps the - experiment to be as representative as possible to the pubcic But: to do so will be needing a large sample size - Random sampling ≠ Random Assignment  Random sampling is when each sample receives equal probability of being selected  Random assignment is when each sample is assigned to different groups with different probability [EXPERIMENTS AND CAUSALITY] - The 3 conditions: 1) x precedes y, 2) as x changes y changes,
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