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Day 6
Table of Contents
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Review

Our knowledge of how to conduct educational and
training practices comes from experiences, observations, and testing.
Although testing provides best empirical results, there are a variety
of items to consider.
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Test standardization:
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Allows for comparison of scores;
administrative procedures, scoring, and norms.
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Test validity:
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The degree to which a test measures what
it is suppose to measure: Content, concurrent, construct,
and predictive
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Test reliability:
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How close obtained scores are estimates
of true scores. Test-retest, equivalent forms, split-half,
rational equivalence, and scorer/rater.
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Choosing a test:
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Is it valid, reliable, easy to
administrate and costly?
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Testing mistakes:
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Generating test without knowing how, not
following procedures, not establishing standards, trying too
much.
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Historical Research

"Systematic collection and
evaluation of data . . . to describe causes, effects, or trends that
may help to explain present events and anticipate future
events." Gay, p 185.
Historical research not only can tell us about
what worked, but what was ineffective or not feasible. Its purpose is
to clarify, correct, or expand our existing knowledge.
Although you can't control variable, you can lend
objectivity. Problem areas to be concerned with:
- External criticism--how authentic is
the material you are examining? Was it really Einstein who said
that?
- Internal criticism--how accurate is the
material? Did he know what he was saying?
- Was the author knowledgeable?
- Did a large time elapse between event and
recording?
- Was the author biased?
- Is there consistency in sources of data?
The report must be more than simply a listing, but
an objective synthesis of knowledge developed through logic.


Qualitative Research

"The collection and analysis of extensive
narrative date to gain insights into a situation of interest not
possible using other types of data." Gay, p
208.
Attempts to ascertain the "why" of a
situation
Five general characteristics of qualitative
research
- Collected in a "naturalistic"
setting
- Data are descriptive
- Emphasis is on a holistic approach
- Inductive analysis (generalization made from
collecting multiple specific instances)
- Describe from the perspective of the research
participants
Qualitative research data (field notes) focus on:
- Feelings
- Beliefs,
- Meanings people attach to the object under
study


Data Collection

Qualitative research generally uses a multi-method
approach, studying a few subjects over an extended period of time
while collecting data through observations, interviews, and
documentation.
Researchers look at events to generate global
explanation (the why) to very general questions. Inductive logic.
Initial components of qualitative research:
- Literature review: not extensive so as
not to bias the reporter.
- Sampling: small, very select sample for
in-depth study
- Instrument: the researcher and the
questions asked
- Validity is how well the observations
reflect reality and interviews reflect feelings and what was
said.
- Look for consistency between observations,
documents, and interviews.
- Keep in mind the "prime directive."
- Observer bias--the ideas we come in with
- Observer effect--the impact of having
someone do a study.
- Data collection: Field notes include
both what was seen and your reflections of what it all means.
Provide a rich description. Not words like "happy."


Analyzing the data
An iterative process to distill the
information.
First get your data organized and check for
completeness, then begin to analyze and interpret the data
Reading and memoing
- Reread notes to get an overall view and search
for themes and threads
Describing
- Focus on painting a verbal picture of the
context, processes, and view from the participant's
perspective
Classifying
- Break out the main ideas, classify them, and
eventually rebuild into theme and patterns
Interpreting
- Pulling together the important aspects; what
is important, why is it important, and what can be learned from
it?
Writing the report
- Chose theme of your report, then include those
items you've found insightful and appropriate.


Analysis and Interpretation

Qualitative research evolves as it is conducted
- Start the analysis right from the beginning of
data collection
- Tweak the instrument as you go to obtain the
data you need
- Look for categories or themes
- Include many direct quotes to capture
feelings, attitudes, and beliefs
The process is very subjective, and no attempt is
usually made to generalize to a larger population.
Cautions:
- Results are difficult to analyze
- The process is very costly in the time spent
to do it properly
- Conclusions are tentative, and can't be
generalized
- Hard to pull it off and obtain a worthwhile
results


Closure; Review and Assignments

Review questions: (To find the answers,
click on the question mark icon)
What
is the purpose of historical research?
When
is qualitative research better than quantitative research?
Which
method of data collection for qualitative research do you feel
would be best? Why?
Explain
some of the differences between qualitative and quantitative in
the research process.
Before next week:
- Read Chapter 8 and pages 431-443 in book



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Gallant