Test 1 Flashcards
What are two validity types in Police Research Material?
Internal and External
What is internal validity pertaining to police research?
Were there flaws in the study itself?
What is external validity pertaining to police research?
Generalize results of our study to other persons, times, settings
What is a variable?
A measurable characteristic that varies (age, intelligence, income)
What are types of variables in experimental investigations?
Independent, Dependent, Control
What is a independent variable?
It is the cause. It’s value is INDEPENDENT of other variables
What is a dependent variable?
Is the effect. It’s value DEPENDS on changes in the independent variable
What is a control variable?
Must be constant and could affect the outcome of the experiment
What is a control group?
A selected group that does not receive the treatment
What is a control variable?
Things held constant that could affect the outcome of the experience
What is regression towards the mean?
If a variable is extreme, it will be closer to the average next time you measure it?
What can regression towards the mean result in?
Wrongly conclude that an effect is due to the result instead of by chance
What are the steps to regressing towards the mean?
Pick the worst places, treat, and then see effect
What are the strengths of the RCT model?
Randomly assigned into two groups; intervention or control group
Removes potential bias
Creates balance
Allows for accurate analysis
What is Effect Size?
Quantifies the difference between two groups
Provides a measure of the “size of the effect”
Indicates the relationship between variables, magnitude of observed effect
What is statistical significance
How likely a pattern in your data is due to chance
.05 chance of not being true
What is the downside of statistical significance?
Helps you understand how rare the results are
Does not tell you if the experiment was conducted well or well controlled
What is a paradigm?
How we see and understand the world
What are the consequences of a certain paradigm?
Can create a blind spot
Creates our vision, see life through one basic assumption
What are observations of paradigms?
They’re; common, useful, can sometimes only have 1,
Who usually creates paradigms?
Young people or outsiders
What are advantages of young/outsiders?
No peer pressure
No investment
They don’t know “what can’t be done”
Don’t understand subtleties of old rules
Can you change paradigms?
Yes
What quality must pioneers possess?
Courage