Title: Dr. Kimberly KempfLeonard
1Methods Sources of Data How, Who What
outcome measures subgrantees should try to know
provide
- Presented by
- Dr. Kimberly Kempf-Leonard
- School of Social Sciences
- University of Texas at Dallas
- kleonard_at_utdallas.edu
Performance Measurement Training
2Why are we doing this?
- Monitoring Assessment
- Improve our juvenile justice system
- Convince other systems they can benefit from what
weve done - Describe Explain Evaluate Predict
3How do you know .something (lets call it X)..?
- X is common sense or obvious
- X is a generally agreed upon belief
- X is based on tradition
- Experts told me X
- I learned X through my own experience
- I observed X myself
- Could you be wrong?
- Inaccurate observations
- Overgeneralization
- Selective Observations
- Illogical reasoning
- Resist change
- Ego-based commitments
- too devoted to tradition
- Uncritical agreement with authority
4Whats it mean to know somethings true or real?
- Is it real in eye of beholder?
- Subjective reality
- Is it the same reality for everyone?
- Objective reality
- Goal Real Information on Outcomes
- distinguish objective subjective
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6We all know how to lose weight
- 1980-90s Hypothesis Weight loss a longer life
are both more likely when you eat a low fat diet. -
FAT
CAUSES FAT - Fat is bad for you it makes sense
- pasta, bagels, bran muffins
- U.S. Food Pyramid
-
- 2000s Hypothesis Weight loss and a longer life
are both more likely when you eat a diet low in
carbohydrates. -
CARBS CAUSE FAT - Atkins diet Red Meat
- Endocrinology 101 theory carbs
insulin/blood sugarmetabolize fatappetite - Epidemic of obesity and Type II diabetes
clinical trials low fat diet fails -
- 2005 Hypothesis There isnt just 1 right
answer - Move More Eat Less X, Y X
CAUSE FAT
7Time Data Collection Design
- Cross-sectional designs
- Data are collected for a single point in time
- Quickest
- Only correlations, cant assess cause/effect
- Longitudinal designs
- Add a time dimension with at least 2 data
collection periods (6-12 months follow-up) - Case Study provides rich details
illustration Difficult to generalize to other
cases
8Appropriate Data Collection METHODS?Ask...Watch
ExperienceUse whats there
- Archival records
- Documents, Information Systems, Content
- Field Observations
- Personal Experiences
- Surveys
- Questionnaires, Interviews, Focus Groups
9For which subjects (youths, programs, services)
should they get data?
- Good answers
- The population
- 2) A sample that represents the population well
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11We can only get ..Is that enough?
- How the subgroup came to exist (i.e. Selection)
is critical information - Front end select to represent population (No
CREAMING) - Back end minimal attrition bias (No MORTALITY
problem) - lottery, equal chance of being in subgroup
(probability sampling) - Size or number of subjects isnt nearly as
important - Larger samples more breadth less depth
- Want more if targeted behavior or outcome is
infrequent
12Key know traits of subjects present absent
13What sort of information is recorded? (variables)
- Output measures of Program Activities
- hours of training
- of youth served
- Average days in program services
- of services implemented
- Average days from intake to disposition
- Outcome measures
- (Short- Long-term)
- of youth who reoffend
- of youth who complete program requirements
- of youth with improved targeted behaviors
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15Assessing variables
- Characteristics
- Multiple categories
- Mutually exclusive
- options are exhausted
- Seldom perfect measures
- Fail to get true meaning equate measure proxy
- Random mistakes
- Systematic mistakes
- Multiple measures improve confidence
- 2 eyes are better than 1
16A variable should try to hit
17What do we know about unemployment rate.
- U.S. unemployment rate is measured by dividing
the number of unemployed individuals by the
number of people in the civilian labor force
multiplying by 100 - Civilian Labor force exclusions military,
inmates,
retirees, disabled, voluntarily idle. - Unemployed individuals include working at paid
job (inc. part-time), unpaid work at family
business, absent from work (paid unpaid) due to
labor dispute, bad weather, vacations, personal
reason
18more confident that crime declined
19- What happened to the exit polls in the 2004
Presidential election? - What does it mean for a youth to re-offend or
recidivate? - What does it mean for youth to participate in the
program? - Is there any type of youth not included? Does
that make a difference? - What does if mean if theres a handwritten A in
the blank for race?
20Survey Methods
- Standardized, systematic asking
- Uniform stimulus so responses can be compared
- Efficient data collection
- Price, Speed, Quality Pick Two
- Ideal for characteristics of a population
- Individuals attitudes, values, behaviors,
experiences, opinions, knowledge, circumstances - Organizations/Institutions culture, policies,
finances
21The heart of surveys is the questionnaire
instrument
Wake up Pay attention theres a quiz coming!
22Anticipate how they might answer
- Interpretation of the Question
- Retrieve from memory
- Form judgement
- Edit response for social desirability (strategic)
- Trying out (pretesting) survey questions helps
avoid problems
23Need to be Clear
- Avoid extreme loaded positions
- Should State spend more money on youth services?
- Should State spend more money to help serious
juvenile offenders? - Limit to a single topic (Double-barreled
Conditional phrases) - Do you think your outlook and performance
benefited from the curriculum and the teachers? - Avoid ambiguity
- What is the number of youths living in the
facility most of the time while working, even if
they have another place to live? - Complexity creates confusion
- Please choose one or more categories that best
indicate your race. - Avoid Presupposition (varied word tenses, forced
choices) - What are your usual practices for studying?
- Have you stopped attending a program?
- Are you truant or delinquent?
24Confidence that we Know!Quality Control
Standards.. because we dont use the same
vocabulary, have the same experiences, or
interpret the same way.
- Precision Does it achieve the level of
generality intended? - Validity Is it accurate?
- Does it capture reality of
whats intended? -
- Reliability Do repeated tries yield the same
result? - Assess comparisons cross-checks
- Do both eyes see it the same way?
- Use established measures
- data collection instruments
- cross-check data collectors
- test-retest method (2 different times)
- split-half method (1/2 one kind ½ another)
25Final advice Dont worry!
- a lot of examples exist already that can be
easily adapted - There are a lot of college professors and
graduate students in every state just itching to
help you (and we work cheap)