Research Designs
What is the point of the research?
The Dependent Variable
What is a correlation?
RELATIONSHIP BETWEEN 2 VARIABLES (r)
What is the key term we use to describe the result between variables in a t-test?
Difference
How does the research come about (how is it measured)?
The Independent Variable
What is a T-Test?
DIFFERENCE BETWEEN 2 GROUPS (t)
What is the decision making P Value?
p<.05
What are 4 common research styles in Criminology?
1. Descriptive
2. Correlational
3. Comparative
4. Simulation
5. Evaluation
6. Ethnological
7. Feminist
What is an ANOVA?
DIFFERENCE BETWEEN 2+ GROUPS (F)
What are the 3 questions to ask when interpreting your research design?
1. What type of test should I use?
2. Is the result significant?
3. Is the result positive or negative?
What are the 3 graphs are used for each statistical test?
Distribution = Histogram
Correlation = Scatterplot
T-Test / ANOVA = Bar Graph
If the P Values is less than .05?
REJECT THE NULL HYPOTHESIS (THERE'S A DIFFERENCE OR A RELATIONSHIP)
Write of the formula for a t-test if there is a significant result?
t (xx) = xx.xx; p= <.05
Why doesn't correlation equal causation? Provide an example.
Correlation tests for a relationship between two variables.
However, seeing two variables moving together does not necessarily mean we know whether one variable causes the other to occur.
What is the difference between a Type 1 + Type 2 Error?
1. Type 1 Error: WHEN NULL HYPOTHESIS IS TRUE BUT WE REJECT IT (DECISION MAKING NOT STRICT ENOUGH)
2. Type 2 Error: IF NULL HYPOTHESIS IS FALSE BUT WE FAIL TO REJECT IT (DECISION MAKING TOO STRICT)
Write out the formula for a t-test if there was no difference?
t (xx) = xx.xx; p= >.05