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Broken window theory
a theory proposing that even small acts of crime, disorder, and vandalism can threaten a neighborhood and render it unsafe
Why study research methods
CJ professionals (and laypersons) are both constant consumers and producers of research about CJ issues
zero tolerance
Cracking down on minor offense
Experiential reality
The things we know from direct experience
Agreement Reality
Things we consider real because we have been told they are real, and everyone agrees
Kansas City Preventive Patrol Experiment
Police study that found that changes to police presence did not have a significant effect on crime or change citizen satisfaction levels with the police. (Agreement reality)
desire
is to predict our future circumstances
Probabilistic Reasoning
Determining the likelihood and uncertainties associated with various events. Why patterns occur.
Tradition
Things that everyone knows. It's values and culture. How the world works.
Authority
trusting the judgement of someone with special expertise.
Example of authority
A doctor, drugs, alcohol
Is authority and tradition problematic in our world?
yes
Why is authority and tradition problematic?
It prevents innovation or questioning of status.
Explanatory Research
research that attempts to explain why things do or do not happen. Qualitative Research.
Description Research
Looking at observation and details. It describes the scope of a problem or policy response.
Example of Description research
Uniform Crime Reports
Example of Explanatory research
Stop & Frisk Study
applied research
based on need for specific facts and findings - with implications for policy
Different Research Method
Interviews, surveys, field research, content analysis, official records.
Quantitative Research
Research is used to quantify the problem that can be used for statistics. It is used to generalize results from a larger sample population. We use a large number, 30+. Mathematical theories and hypotheses.
Example of Quantitative Variable
A SHU student studying stress for SHU students. The study can be applied to all college students.
Qualitative Research
Informal research methods that is used for exploring. It helps researchers gain an understanding of underlying reasons, opinions, and motivations. It provides insights for understanding reasoning.
Example of Qualitative research
Usually a small number of surveys that ask open-ended questions to find why or how, observing the environment.
scientific inquiry
Identifying the problem, formulating a hypothesis, developing the research plan, collecting and analyzing data, interpreting results and forming conclusions.
Research Question
Broad question that must be narrowed
Hypothesis
An educated guess
null hypothesis
The hypothesis that there is no relationship or effect.
alternative hypothesis
The hypothesis that a proposed there is a relationship or effect.
Rejecting the null hypothesis
There is a relationship, difference or effect
Topic example
family disruption and juvenile deliquency
Research question exmaple
Does family disruption have an impact on childhood delinquency rates?
Hypothesis example
I hypothesized that my family disruption has an influence childhood delinquency rates.
null hypothesis example
There is no relationship between family disruption & childhood delinquency
Alternative hypothesis
There is a relationship between family disruption and childhood delinquency.
Theory
A belief or assumption about how things relate to each other. It establishes a cause-and-effect relationship between variables with a purpose of explaining and predicting phenomena
Developing The Research Plan
-Selecting the right methodology. Identification of subjects or participants. Description of the data-gathering procedures. Specification of the data analysis techniques.
Research Methods Quantitative Characteristics
Numerical, Positivist Approach (Random Sampling), Hypothesis, Large Sample, Statistical analysis, Generalizable.
unit of analysis
The main entity, object or person that you focused on and wish to make statements about at the end of your research study. Who/ what are you studying?
Example of Unit of analysis
We are studying whether neighborhoods with more streetlights have lower crime rates.
Social Artifacts Unit of Analysis
products of social beings and their behavior
Example of social artifacts of Unit Of Analysis
Stories in newspapers, posts on the internet, photographs of crime scenes.
Population
The set of ALL individuals of interest in a particular study
Sample
a subset of the population. Intended to represent the population in a study
Variable
The characteristics we're interested in for our study, the kinds of information we will collect about the units in a study.
Attribute
A specific value of a variable. Characteristics that describe some object/person.
inferential statistics
Used to make inferences from a small group of data (sample) to a larger group (population). Helps us understand what is true about the group or population.
descriptive statistics
used to organize and summarize data
independent variable
The experimental factor that is manipulated; the variable whose effect is being studied.
dependent variable
The outcome factor; the variable that may change in response to manipulations.
Principles of social science research
Reliability, Validity, empiricalism, objective, ethics
Reliability
Consistency in procedures and in reaction of participants
Validity
Truth- Did I measure what I intended to measure? The extent to which a concept or conclusion is well-founded and likely corresponds accurately to the real world.
Data Analysis
Is not an end in itself
Article
Conclusions, Limitations, Future Research, Implications.
Deductive Reasoning
Starting broad then downsizing after each process