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RESEARCH
ON A
EVOLUTIONARY
PERSPECTIVE
Your Name
Essence of science
• A way of thinking
Identifying questions, refining them and then proceed to
answer them
Interplay between inductive and deductive thinking
• Research can be conducted at many different
constraint levels
New directions in research
•Research is constantly evolving
•Science is an interconnected discipline
Evolution of Research
Questions
•Answering one question raises other questions
•Cleverly addressing practical problems
•Using advanced technology
New Statistical Methods
• New statistical procedures provide tools to study phenomena not
previously open to study
• Many new statistical procedures are only possible because of high-
speed computers
• Vast array of new statistical procedures affecting psychological
research
Analysis of Variance
•The vast majority of the research designs covered in this
text were developed to take advantage of ANOVA
techniques
•Used for group comparisons
•Very flexible tool
•The most widely used statistical procedure
•A statistical way to combine several studies on a single
topic
•Involves
•Computing an effect size for each study
•Computing a weighted effects size for the series of studies
•An accepted way of integrating multiple studies on a topic
Multidimensional Scaling
•A procedure to reduce a large number of measures into a much
smaller number of dimensions
•Once thought to be the means of quickly understanding psychological
phenomena, but it has not proved to be that powerful
Path Analysis
• A regression-based technique for testing whether
correlational data are consistent with a specified
causal model
• One of many Latent Variable models
Neuro-imaging
• Procedures such as CAT scans, MRIs, and PET scans
all use sophisticated mathematics to produce the
three-dimensional images of the body
• The mathematics is similar to multidimensional
scaling procedures
• Procedures so clever that it won the Nobel Prize for
the developers
Multidisciplinary Research
• All scientific disciplines are artificial boundaries
• Increasingly, interdisciplinary teams of scientists are
attacking critical questions that cross current
scientific disciplines
Impact of Computers
• Computer capabilities are exploding
• Many research areas would be impossible without
the aid of computers
• Computers are a tool; science still relies on its logic
to answer research questions
Connectionist Models
• Also called Parallel Distributed Processing (PDP)
models
• Tremendous area of research now
• Computer modeling may reshape how we theorize
about complex natural phenomena
Summary
• Science is a constantly developing enterprise
• As science develops, new questions are raised and
sometimes new techniques must be developed
• Many factors affect the development of scientific research,
but no factor is more important than the cleverness of
scientists

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00952

  • 2. Essence of science • A way of thinking Identifying questions, refining them and then proceed to answer them Interplay between inductive and deductive thinking • Research can be conducted at many different constraint levels
  • 3. New directions in research •Research is constantly evolving •Science is an interconnected discipline
  • 4. Evolution of Research Questions •Answering one question raises other questions •Cleverly addressing practical problems •Using advanced technology
  • 5. New Statistical Methods • New statistical procedures provide tools to study phenomena not previously open to study • Many new statistical procedures are only possible because of high- speed computers • Vast array of new statistical procedures affecting psychological research
  • 6. Analysis of Variance •The vast majority of the research designs covered in this text were developed to take advantage of ANOVA techniques •Used for group comparisons •Very flexible tool •The most widely used statistical procedure
  • 7. •A statistical way to combine several studies on a single topic •Involves •Computing an effect size for each study •Computing a weighted effects size for the series of studies •An accepted way of integrating multiple studies on a topic
  • 8. Multidimensional Scaling •A procedure to reduce a large number of measures into a much smaller number of dimensions •Once thought to be the means of quickly understanding psychological phenomena, but it has not proved to be that powerful
  • 9. Path Analysis • A regression-based technique for testing whether correlational data are consistent with a specified causal model • One of many Latent Variable models
  • 10. Neuro-imaging • Procedures such as CAT scans, MRIs, and PET scans all use sophisticated mathematics to produce the three-dimensional images of the body • The mathematics is similar to multidimensional scaling procedures • Procedures so clever that it won the Nobel Prize for the developers
  • 11. Multidisciplinary Research • All scientific disciplines are artificial boundaries • Increasingly, interdisciplinary teams of scientists are attacking critical questions that cross current scientific disciplines
  • 12. Impact of Computers • Computer capabilities are exploding • Many research areas would be impossible without the aid of computers • Computers are a tool; science still relies on its logic to answer research questions
  • 13. Connectionist Models • Also called Parallel Distributed Processing (PDP) models • Tremendous area of research now • Computer modeling may reshape how we theorize about complex natural phenomena
  • 14. Summary • Science is a constantly developing enterprise • As science develops, new questions are raised and sometimes new techniques must be developed • Many factors affect the development of scientific research, but no factor is more important than the cleverness of scientists