The Flat Venus Society in Library Assessment; promoting accuracy in [reporting of] numbers
November 28, 2010 1:55 PM Subscribe
The Galaxy Garden
posted by infinite intimation (11 comments total)
31 users marked this as a favorite
is a 100-foot diameter outdoor scale model of the Milky Way, mapped in living plants and flowers and based on current astrophysical data.
Artist Jon Lomberg
conceived and designed the garden to encourage scientific education about our place in the Universe. The Galaxy Garden is located at the Paleaku Peace Gardens Sanctuary in Kona, Hawaii. Paleaku is a non-profit 9-acre botanical garden that facilitates educational and cultural programs.
Jon Lomberg is one of the world's most distinguished artists inspired
by astronomy. He specializes in designing and executing visual presentations about astronomy in all media, including exhibit design, film and television, computer graphic, print and electronic media. In addition to creating his own art, he has managed and led teams of artists and technicians on major projects using sophisticated image technology.
For example, he played a part in designing the Marsdial
, a way to teach about how/why a ‘sun-dial’ would operate differently on a different planet.
(extra, web-cam equipped Earth-dials
Gallery of original art
, Interestingly, Starflowers
Computerized images from the 1992 Magellan space probe depicted high mountains and deep canyons on the surface of the Venus.
Aware that Venus is mostly flat, rolling plains, one planetary scientist founded The Flat Venus Society to advance the aim of accurate representation of planetary scientific data
. Since a culture of assessment requires accurate, thorough, and impartial collection, interpretation, and reporting of data, this paper proposes the formation of The Flat Venus Society in Library Assessment.
The paper reviews major library advocacy research studies and campaigns in the USA. Quite often these studies and campaigns report inaccurate information and draw unjustified conclusions. Many research studies fail to fully address limitations of their designs. Others misapply statistical techniques due to an insufficient grasp of their proper uses. Some campaigns use questionnaires for educational rather than data-collection purposes, exacerbating the already inadequate understanding of survey research methods among the profession at large. Interpretations and uses of cost-benefit and return-on-investment studies are often incorrect. Library value calculators are deceptive tools whose use should be abandoned. A call is made for the curtailment of the influence that marketing specialists have on the production of library advocacy information. The practices of these specialists threaten the reputation and credibility of the profession as a whole. A strategy by which the library assessment community might promote best research and quantitative analysis practices in librarianship is proposed. (Full PDF
What is Nonprobability Sampling
We use the term validity to refer to the approximate truth of an inference. When we say something is valid, we make a judgment about the extent to which relevant evidence supports that inference as being true or correct. Usually, that evidence comes from both empirical findings and the consistency of these findings with other sources of knowledge, including past findings and theories. Assessing validity always entails fallible human judgments. We can never be certain that all of the many inferences drawn from a single experiment are true or even that other inferences have been conclusively falsified. That is why validity judgments are not absolute; various degrees of validity can be invoked. As a result when we use terms such as valid or invalid or true or false in this book, they should always be understood as prefaced by ‘approximately’ or ‘tentatively.’ - Shadish, Cook, and Campbell, 2002, p. 34.