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53 Cards in this Set

  • Front
  • Back
Why Sample?
- Need a process to select participants and observations on which to carry out in a study
- Studying a whole population may be impossible
- More accurate information
What Are Two Major Types of Sampling?
- Non Probability
- Probability
What is Non Probability Sampling?
- Simple
- Common in qualitative studies
- May be unrepresentative
- Elements of population don’t stand an equal chance of selection
What is Probability Sampling?
- Most common in social research, quantitative studies
- Representative of the larger population
- Elements have equal chance of selection
What is Purposive/Judgemental Sampling?
- Sample selected on the basis of your own knowledge of the population you intend to study and your research questions
- Useful when studying a small subset of a larger population
What is Snowball Sampling?
- When already recruited respondents provide the researcher with assistance in locating other members of the population under study
- Useful when members of a population are particularly difficult to locate
- I.e. sex workers, undocumented immigrants
- Representative is problematic (because the outcomes become too similar)
What is Haphazard Sampling?
- Reliance of available subjects
- Use of those available subjects at a particular time
- Convenient and inexpensive
- Not representative of a larger population
- Difficult to generalize
- I.e. recruiting subjects on the street, or in a classroom.
What is Quota Sampling?
- Helps address the issue of representativeness of a sample
- Begins with a table describing the characteristics of the target population
- With this you try to assign equal portions of people who belong to different groups to your sample
What is Representativeness?
- A sample is said to be representative of a population if its aggregate characteristics closely approximate those aggregate characteristics in the population
- Basic Principle: ALL member os a given population should stand an equal chance of being selected for a particular sample
What is Population?
- Theoretically specified aggregation of the elements in a study
- I.e. Canadians, sociology students
What is Sample?
- Portion of the population from which information is collected
What is a Sampling Unit?
- Elements considered for selection during some stage of sampling
- The elements of a population that are available and have an equal chance of being selected to form the sample
What is the Sampling Frame?
- List or quasi list of elements from which a probability sample is selected (i.e. a roster, phone books)
- Compiled lit of individual sampling units
- A summary description of a given variable ( i.e. proportion of people who smoke)
- In a population is called a parameter
- In a sample is called a statistic
Simple Random Sampling (SRS)
- Most basic method of random sampling
Research participants selected at random from a sampling frame
- Computer assisted
Stratified Sampling
- You begin with a table describing the characteristics of the target population and dividing it into homogeneous subsets (strata)
(i.e. race, gender, nationality)
- A proportion of individuals from each strata assigned to the sample matching the proportion of individuals from that group who belong to the population at large
Cluster Sampling
- Used when it is either impossible or impractical to compile an exhaustive list of the elements that compose a large population
- Population elements may already be grouped into subpopulations, of which lists actually exist
What is RDD?
- Random Digit Dialling
What is a Statistic?
- The summary description go a variable in a sample
Why Qualitative Field Research?
- Social research “right where it happens”
- Deeper understanding of social phenomena
- Probing social life in its natural habitat
- Good to study social processes over time as they happen
- Data collecting and theory generating
What is Case Study Design?
- Common in qualitative fieldwork
- Not a mode of observation, but a type of research design where attention is paid to a single instance of some social phenomenon
- Used in both qualitative and quantitative research
- Sometimes used as preliminary to a more elaborate study
The Extended Case Method
- Developed by Micheal Burawoy
- Used to discover flaws and modify existing social theories
- 1st step: researcher enter the field with a clear expectation of what to find
-2nd step: notes how observations conflict with extant theory and whether they support of reject what already exist
- Theory ->Observations= largely deductive
Grounded Theory Approach
- When researched don’t begin with a preconceived idea, but instead allows theory to emerge from the data
Ethnographies
- Rooted in naturalism, observing events and people in a natural setting, this is important and specific because it considers what people do not do what they say they do
How to “Get In Field Research"
- Gather relevant literature
- To gain access into the field
- Identify the gatekeeper: formal access and consent by contacting the person in charge.
- Seek out the informant: establishing contact with a member who introduces you to the field
- Join the group: secures membership status
- In some cases deception in used
What is a Complete Observer?
- Observes the field but does not participate in the activities that take place in the field
What is the Participant Observer?
- Reveals that she or he is a researcher but still participates in the activities that take place in the field
What is a Complete Participant?
- Engages fully in activities with other members
Strengths of Field Research?
- In depth understanding of social phenomena and subtle nuances in attitudes and behaviours
- Flexibility
- May or May not be expensive
- Validity
Weaknesses of Field Research?
- Reliability
- Not representative of larger populations
What is PAR?
- Participatory Action Research
- Critiques the distinction between researcher and subject
- The researcher becomes a resource to those being studied
Why Experiments?
- Mode of observation that enables researchers to explore casual relationships
- Involves taking action and noting the consequences that follow from that action
What is Stimulus?
- Independent variable
What is Effect?
- Dependent variale on which the stimulus has some impact
What is Placebo?
- Inactive treatment (substance) designed to resemble the stimulus being tested
What are the Stages of Experiementation?
- Pre-testing
- Subjects are measured in terms of D.V before the stimulus or placebo is applied
- Post-testing
- Subjects are measured in terms of the D.V. after the stimulus or placebo is applied
What is an Experimental group?
- Groups of subjects which is administered the stimulus
What is the Control Group?
- Group of subjects which is administer no stimulus
What is a Double Blinds Experiment?
- Neither subjects nor researchers know which group is receiving the stimulus
- Ensures that subjects do no display changes in the D.V. by being aware of the fact they are receiving a stimulus
Single Blind?
- Subjects don't know
Triple Blind?
- Subjects, researchers and data analysts don’t know
What is an Open-Ended Question?
- Respondent is asked to provide her own answer to a question
(i.e. by filling in the blank)
What is a Close-Ended Question?
- Respondent is asked to select an answer from a list provided by the researcher
What are some common pitfalls in question writing?
- Jargan, Slang, Abbreviations
- Vagueness
- Emotionally Charger Language
- Leading Questions
- Double Barrelled questions
- when and is in the question
- Question beyond respondents capabilities
- Question not relevant to respondent
- Negative items and double negatives
- Threatening questions
What are Contingency questions?
- Yes or No
- If you how many times?
What are Matrix Questions?
- When you want to ask several questions that have the same set of answer categories
- Pros: save questionnaire space
- Cons: might stop reading the questions carefully and answer all questions in a general pattern
(question: sa a d sd u)
Self Administered Survey
- Most common is mail surveys
- Questionnaire, a set of instructions and envelope for the respondent to send back the completed form
- Not too costly
- people feel more comfortable giving answers here rather than face to face
- Low response rate
- Bias, only people who feel strong about the issue will respond
Phone Surveys
- Very common method
- Interviewer calls respondent and ask questions and record answers
Web Survey
- Respondent is directed to a site to answer a questionnaire
- Email Survey
Face to Face Interview
- Researcher sens interviews to ask question orally and record answers
- High response rate
Use of Existing Statistics
- Researcher uses both information and statistical inferences carried out by someone else
- Supplemental source of data in both quantitative/ qualitative research
Problems with Existing Statistics
- Availability of reliable and valid statistical records
- Gap between the intentions of data collectors and the needs of the data analyst
Content Analysis
- Study of recorded human communications
Pros: cheap not time consuming
Safe
Easy to repeat
Cons: Limited to the examination of recorded communications
What is Evaluation Research
What is Evaluation Research
- Form of applied research undertaken for the purpose of determining the value of a social intervention
- Appropriate for any study of planned o actual social intervention
- Applied as opposed to basic research
- Evaluation research always takes place in a political context