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Biomedical Research

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No one looks over a scientist's shoulder to police honesty. ... Clever Hans, praying mantis) Thorough Hypothesis Testing. Consider alternative hypotheses ... – PowerPoint PPT presentation

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Title: Biomedical Research


1
Biomedical Research Honor in science
2
Good Science is Honest Science
3
Can you be a good scientist?
  • Always honest?
  • Always obey laws?

4
Can you be a good scientist?
Always honest? Always obey laws?
  • 48 college students admitted cheating in school
  • 100 saw others cheat and did not report it

5
Can you be a good scientist?
Always honest? Always obey laws?
  • Reasons for coming to a complete stop
  • Safety of others and self
  • Obeying law
  • Ticket

6
No one looks over a scientists shoulder to
police honesty.
7
Science requires higher standards of ethical
behavior than expected of rest of world.
8
  • Careful observation
  • Thorough hypothesis testing
  • Good record keeping
  • Complete presentation of results
  • Objective data analysis
  • Honest credit distribution

9
Careful Observation
  • Consider experimenter
  • effects in experimental
  • design and data analysis.
  • (ex. Clever Hans, praying mantis)

10
Thorough Hypothesis Testing
  • Consider alternative hypotheses
  • Survey / experiment
  • Appropriate design
  • Controls

11
How is record keeping related to ethics?
12
What is scientific data?
  • Information in
  • Notebooks
  • Graphs
  • Tables
  • Photos
  • Tapes (video and audio)
  • Electronic media

13
Scientific data
  • Ownership
  • Correcting mistakes
  • Organization
  • Storage

14
Case 1
  • David Baltimore, Nobel laureate, former MIT
    biologist, President of Rockefeller University
  • Tereza Imanishi-Kari, Assistant Professor MIT
  • Co-authors of 1986 paper in Cell
  • Margaret OTool, postdoc MIT, charged
    Imanishi-Kari of falsifying data

15
Case 1
  • Preliminary hearing at MIT
  • Congressional hearing by oversight and
    Investigations subcommittee of the House Energy
    and Commerce Committee

16
Case 1
  • Secret Service analysis 1/3 of info in
    Imanishi-Karis notebooks was not authentic
  • Imanishi-Kari admitted to recording data months
    after they had been performed.

17
Case 1
  • Spurred debate in D.C. over whether to set a
    standard for documentation of scientific
    research.
  • Most scientists think D.C. is overreacting.
  • Importance of making unbiased notes on day of
    experiment.

18
Presentation of Results
  • Include all relevant results.
  • Do not transform data to be misleading.

19
Objective data analysis
  • Statistical analysis
  • Interpretation of results
  • Fair assessment of publications

20
Honest credit distribution
  • Citations
  • Acknowledgments
  • Authorship

21
Authorship
  • 2 out of following
  • design
  • execution
  • analysis
  • writing

22
Many journals require a signed affidavit assuring
that authors have read the manuscript prior to
submission and are fully aware of its content and
that no substantial portion of the research has
been published or is being submitted for
publication elsewhere.
23
Rules for order of authorship
  • British alphabetical order
  • American others order of importance to the
    project

24
Case 2 (from American Society for Zoologists)
  • Joe, grad student, studies blood samples from
    southern aardvarks.
  • Sue, undergrad, volunteer, field assistant to
    Joe, offered second authorship in lieu of money.

25
Case 2
  • Prof. Smith offers technician to analyze hormone
    levels in blood samples in exchange for second
    authorship.
  • Prof. Jones send blood samples from northern
    aardvark Joe offers second authorship.
  • Prof. Mott, supervisor, away on sabbatical,
    provided Joes research assistantship.

26
Case 2
  • Joe analyzes and interprets data, writes paper by
    himself and lists Joe, Sue, Smith, Jones and Mott
    as authors
  • Mott furious Authorship implies INTELLECTUAL
    contribution!!!
  • Mott says only he and Joe should be authors

27
Reasons for honesty in science
  • Science builds upon itself
  • Does not reinvent wheel
  • Errors in foundation are compounded

28
Types of Fraud in Science
  • Plagiarism
  • Trimming
  • Cooking
  • Forging
  • Misuse of statistical techniques

29
Plagiarism
  • taking credit for work of others
  • copying paraphrasing patchwork
    uncited ideas

30
Plagiarism
  • stealing words or ideas

31
Trimming
  • smoothing irregularities to make
  • data look accurate, precise

current
time
32
Trimming
smoothing irregularities to make data look
accurate, precise
current
time
33
Cooking
  • retaining results that fit
  • hypothesis and discarding others

pain
log drug
34
Cooking
retaining results that fit hypothesis and
discarding others
pain
log drug
35
Forging
fabricating data or whole experiments
color intensity
time
36
Forging
  • fabricating data or
  • whole experiments

color intensity
time
37
Forging
fabricating data or whole experiments
color intensity
time
38
Forging
fabricating data or whole experiments
color intensity
time
39
Misuse of Statistical Techniques
  • Use appropriate techniques
  • Understand computer programs
  • Seek help if necessary

40
Commit fraud
  • scientific career in
  • jeopardy (probably over)
  • and deserves to be!

41
Occurrence of fraud in science
  • Lower than general public incidence of fraud
  • Reasons some scientists turn to fraud
  • Deterrents to fraud in science

42
Preventing Fraud in Science
  • Society level
  • Lab director level
  • Peer level

43
Society Level
  • loss of job
  • loss of funding

44
Lab Director Level
  • Good record keeping (raw data)
  • Contact with lab investigators
  • Regular lab meetings
  • Lab environment without internal competition
  • Encourage results regardless of whether they
    support lab hypotheses

45
Peer Level
  • Communication between lab members
  • Replicate experiments
  • Peer review process
  • Healthy skepticism about findings.

46
"...science must contain an ... organized
system of skepticism.... improves the quality of
scientific investigation and reduces the extent
of possible frauds."
  • Kohn (1988)

47
Scientists must be concerned with both fraud and
errors.
48
  • Research is liable to involve errors.
  • Scientists have a moral obligation to minimize
    error by checking the accuracy of their data and
    conclusions.

49
"... ethical principle that has made science
possible is that the truth shall be told all the
time. If we do not penalize false statements made
in error, we open the way for false
statements by intention. A false statement of
fact, made deliberately, is the most serious
crime a scientist can commit."
  • Snow
    (1959)

50
  • Can only disprove theories
  • Science is full of uncertainties
  • Because of these uncertainties that accuracy in
    research and in reporting research results
    becomes so important.

51
In some situations, ethical issues are clear cut.
In many others, this is not the case.
52
Case 3
  • Referee suppresses
  • publication of a rival's work.
  • Quickly repeats it and rushes
  • own account to publication.

53
Case 4
  • Referee subconsciously
  • influenced by someone elses
  • grant proposal. Begins work
  • on new project. Referee is a
  • more senior scientist and
  • gets publication out faster.

54
Victims of dishonesty
  • Medical research
  • patients suffer or die
  • Environmental research
  • ecosystem
  • Agricultural research
  • consumers

55
Case 5
  • Professor copied articles
  • word-for-word from obscure
  • journals and published in
  • other obscure journals under
  • his own name.

56
Victims?
  • Students
  • University
  • Journal
  • Readers
  • Original Authors
  • Scientists who did not
  • get the plagiarists jobs

57
Most people are usually honest.
  • How do we behave when
  • The task is tedious or complicated?
  • A lot at stake?
  • Nobody watching?

58
Antipiracy Act
  • Increases property rights of databases owners
  • Could limit use by scientists

59
Distribution of Research Materials
  • Whose responsibility to see that scientists have
    access to data?
  • What if they are trade secrets?
  • Should the public have access?

60
Government Control of Science
  • United States Department of Agriculture
  • Environmental Protection Agency
  • National Science Foundation
  • National Institutes of Health
  • Military

61
Funding
  • Difficulties of young investigators getting
    funding "old boys' club".
  • Which projects should
  • be funded?

62
Commercialization of Clinical Drug Trials
63
Paid Consultant
  • (ex. tobacco industry)
  • Writing letters to
  • editors.

64
Acknowledgments
  • Dr. Gail D. Burd, University of Arizona
  • Dr. Lucinda L. Rankin, University of Arizona
  • Honor in Science Sigma Xi
  • On Being a Scientist National Academy of
    Sciences
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