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------------ Forwarded Message begins here ------------
From: bostic@CS.Berkeley.EDU (Keith Bostic)
To: /dev/null@python.bostic.com
Subject: TIME and The Star: closer than you think.
Date: Mon, 3 Jul 1995 20:05:08 -0400

>From Donna Hoffman: hoffman@colette.ogsm.vanderbilt.edu:
[ this is the ``corrected version'' ]

(also up at http://www2000.ogsm.vanderbilt.edu/)

A Detailed Critique of the TIME Article:
        -- "On a Screen Near You: Cyberporn (DeWitt, 7/3/95)"

July 1, 1995 (version 1.01)

Donna L. Hoffman & Thomas P. Novak
Associate Professors of Management
Co-Directors, Project 2000
Owen Graduate School of Management
Vanderbilt University

http://www2000.ogsm.vanderbilt.edu/

Time magazine published a cover story exclusive on Marty Rimm's published,
yet not peer-reviewed, undergraduate research project concerning
descriptions of images on adult BBSs in the United States.  Given the vast
array of conceptual, logical, and methodological flaws in the Rimm study,
(documented in Hoffman & Novak's "Detailed Analysis..." 7/1/95), at least
some of which Time magazine was aware of prior to publication, Time
magazine behaved irresponsibly in accepting statements made by Rimm in
his manuscript at face value.  At the least, Time magazine should have
sought the detailed opinions of objective experts as to the validity of
the study. Time further compounded this error by making other erroneous
statements about the nature of pornography in "cyberspace," and in some
cases, even misinterpreted Rimm's results.  Below we detail the numerous
errors in the Time magazine article.

p. 38, 3rd graf
The Rimm study is not "an exhaustive study of online porn -- what's
available, who is downloading it, what turns them on..."  The Rimm study
is instead an unsophisticated analysis of descriptions of pornographic
images on selected adult BBSs in the United States.  The study findings
cannot be generalized beyond this narrow domain.

p. 38, 4th graf
TIME says the study "tells us about what's happening on the computer
networks, [and] also what it tells us about ourselves." This statement is
misleading, because the study tells us only what happens on selected
private adult BBSs in the United States and can only generalize to those
networks and those individuals using those networks.

p. 38, 4th graf
TIME quotes Rimm as saying, "We now know what the consumers of computer
pornography really look at in the privacy of their own homes," ... "And
we're finding a fundamental shift in the kinds of images they demand."
However, the study does not reveal what consumers look at in their own
homes (or anywhere else).  The study did not examine consumer behavior,
but aggregate download counts of descriptive listings of images available
on adult BBSs.  Although download patterns would be expected to correlate
with viewing, we do not know the extent to which individuals actually
*looked* at the images (or, indeed, whether they looked *at all*).
Additionally, the study provides absolutely no evidence for the statement
that there is a "fundamental shift" in demand for certain types of images.

p. 38, 5th graf
TIME says, "There's an awful lot of porn online."  But in fact, Rimm's
own figures suggest that the amount of pornography on Usenet and the World
Wide Web represents an extremely small percentage of the total information
available on the Internet.  TIME further neglects to clarify this by
noting that the vast bulk of Rimm's study concerns files that reside
exclusively on adult BBSs, which is a very minor portion of "online," and
which does not include the Internet.

TIME then supports this quote by saying that "917,410 sexually explicit
pictures, descriptions, short stories and film clips" were "surveyed."
However, the 917,410 files do not represent porn online, as all of these
917,410 images came from "adult" BBSs.  None of these 917,410 files came
from Usenet or the Internet.  Rimm states that of the 917,410 "descriptive
listings," 450,620 with complete download information came from 68
different "adult" BBSs, 75,000 with partial download information came from
6 different "adult" BBSs, and 391,790 with no download information came
from 27 different "adult" BBSs.

Further, of the 917,410 files, all text and audio files were deleted from
analysis, only a very small number of images were actually examined, and
the actual number of *descriptions* of images retained for the content
analysis on which the study's conclusions are based was 292,114.

In comparison with the 917,410 pornographic files located on the adult
BBSs, how many pornographic images did Rimm locate on the Usenet?  Rimm
states:  "Between April and July of 1994, the research team downloaded
all available images (3254)...the team encountered technical difficulties
with 13% of these images, which were incorrectly encoded or incorrectly
uploaded by the poster.  This left a total of 2830 images for analysis."
Thus, while 917,410 pornographic files were found on adult BBSs, only 2830
pornographic images were found on the Usenet! In addition, out of 11,576
World Wide Web sites in December 1994, Rimm found only nine Web sites,
which is only eight one-hundreths of one percent, contained R or X-rated
Adult Visual Material.   Time's statement that "there is an awful lot of
porn online" is thus blatantly misleading and irresponsible.

p. 38, 5th graf
TIME says that 83.5% of images in Usenet binaries groups are pornographic;
however, this number is simply incorrect.  What Rimm actually wrote (p
1867) was "Among the pornographic newsgroups, 4206 image posts were
counted, or 83.5% of the total posts."  This is based upon 17 alt.binaries
groups that Rimm considered "pornographic" and 15 alt.binaries groups that
Rimm considered "non-pornographic." However, Rimm does not provide a
listing of the names of these groups, so there is no objective evidence
of whether these groups are, in fact, "pornographic."  Also, no
information is provided on the degree to which these 32 groups comprise
the complete universe of Usenet imagery.  Further, as the methodology for
counting the number of images is not specified, it is likely that even
given Rimm's definitions and selection of 32 groups, the percentage is
inflated due to the inclusion of non-pornographic text comments and
multi-part images in the counts.

To make matters worse, Rimm overgeneralizes his results in his summary (p
1914):  "83.5% of all images posted on the Usenet are pornographic." This
is a particularly misleading misinterpretation.

p. 38,40, 6th graf
TIME says that '[t]rading in sexually explicit imagery, according to the
report, is now 'one of the largest (if not the largest) recreational
applications of users of computer networks.'"  But there is no evidence
for this statement as Rimm's study does not examine "trading behavior" on
Usenet news groups, only aggregate *postings*.

p. 40,first full graf
TIME says that the "great majority (71%) of the sexual newsgroups surveyed
originate from adult" BBSs, "whose operators are trying to lure customers"
to those boards.  This percentage is unsubstantiated as Rimm provides
*absolutely no support* for it.  Further, no evidence is presented that
operators are engaged in luring customers to the adult BBSs via Usenet
newsgroups.

p. 40, third full graf
TIME says that "there is some evidence that ... the 1.1% ... women [on
BBSs] are paid to hang out on the 'chat' rooms and bulletin boards to make
the patrons feel more comfortable."  But in fact, Rimm provides *no*
evidence for this supposition (nor any credible evidence that there are
1.1% women and 98.9% men).

p. 40, fourth full graf
TIME says that demand in the adult BBS market is driven by images that
"can't be found in the average magazine rack."  Yet, Rimm did not study
the existence, availability or extent of "analog" pornography, so no such
conclusion is warranted, nor possible.  Further, Rimm's study, due to
methodological flaws, does not demonstrate the demand for such images
(over and above other types of images) on adult BBSs.

p. 40, first column, last graf
TIME says that this material appears on a "public network accessible to
men, women and children" globally, yet as stated above, there is no
evidence that material from private, restricted-access adult BBSs ever
makes its way to public networks like the Internet.

p. 40, second column, first full graf
TIME reports that "only about 3% of all the messages on the Usenet
newsgroups [represent pornographic images], while the Usenet itself
represents 11.5% of the traffic on the Internet." But TIME neglects to
take the interpretation to its logical conclusion, which is that less than
1/2 of 1% (3% of 11%) of the messages on the Internet are associated with
newsgroups that contain pornographic imagery.  Further, of this half
percent, an unknown but even smaller percentage of messages in newsgroups
that are "associated with pornographic imagery" actually contain
pornographic material.  Much of the material that is in these newsgroups
is simply text files containing comments by Usenet readers.

p. 40, second column, 3rd full graf
TIME speculates that pornography is "different" on computer networks, and
although the Rimm study suggests this, as well, absolutely no evidence is
presented to support this hypothesis.

p. 42, third column, second full graf
TIME wonders "[h]ow the Carnegie Mellon report will affect...the cyberporn
debate" and notes that "[c]onservatives...will find plenty" of
"ammunition."  Yet TIME fails to note that the "Carnegie Mellon report"
is in fact a sole-authored study by an undergraduate student in Electrical
Engineering that was not subjected to the usual rigors of peer-review and
revision that are common for this type of research.

p. 42, third column, fourth full graf
TIME notes that "1 million or 2 million people who download pictures from
the Internet represent a self-selected group with an interest in erotica."
Yet, this 1 to 2 million number is completely fictitious and
unsubstantiated because it is not known *and it is not possible to know*
how many people download pictures from the Internet.  Time provides no
reference for this figure, and the figure itself is not mentioned in the
Rimm report.

p. 42, third column, last graf
TIME suggests that Rimm's study will be a "gold mine for psychologists,
social scientists, computer marketers and anybody with an interest in
human sexual behavior."  Yet TIME fails to note that it is highly unlikely
(at least without a cover story by Time) that an unsophisticated, poorly
executed, weakly documented study conducted by an undergraduate in
electrical engineering that was not published in a rigorously
peer-reviewed scholarly behavioral science journal would be ever be
perceived as a "gold mine" by experts in these areas.

Curiously, Rimm has been surprisingly uninterested in making the study
available to such experts.  The study was embargoed for at least six
months prior to publication in the Georgetown Law Journal.  Scholarly
researchers who requested a copy of the manuscript from Rimm were refused
access to the manuscript prior to publication.

p. 43, top graf
TIME says that the "more sophisticated operators were able to adjust their
inventory and their descriptions to match consumer demand," yet the Rimm
study provides very little evidence that this is actually occuring except
in isolated incidents.
------------ Forwarded Message ends here ------------


<a href="http://Web66.coled.umn.edu/WebMaster.html">Stephen E. Collins</a>
University of Minnesota    Fax: (612) 625-6817     sec@web66.coled.umn.edu

    The biggest danger to children on the Internet is FEAR MONGERS.


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