Midterm Study Guide
Midterm Study Guide PHL 306U
Popular in Science and Pseudoscience
Popular in PHIL-Philosophy
This 6 page Study Guide was uploaded by Gabrielle Hutton on Thursday February 11, 2016. The Study Guide belongs to PHL 306U at Portland State University taught by Tom Seppalainen in Winter 2016. Since its upload, it has received 38 views. For similar materials see Science and Pseudoscience in PHIL-Philosophy at Portland State University.
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Date Created: 02/11/16
STUDY GUIDE MIDTERM Part I 1. Critique the conceptual scheme relativists’ epistemological claim that all conceptual schemes are equally real or good by explaining how concepts or categories in conceptual schemes can be evaluated to be better or worse by evidence‐ use an example to illustrate your answer. Conceptual Scheme Relativists’ believe that truth/reality depends on the conceptual schemes individuals employ and that conceptual systems (categories) cannot be evaluated because categories don’t belong in reality‐ some things are imposed on reality, yet all categories (systems) are equally good. According to a CS Relativist, although categorizing things can be useful, some things are imposed on us, such as the air we breath; we know it is made of oxygen, but what difference would it make to us or our knowing of this fact if it were made of something else, as long as we can still breath/live on? There is an importance to conceptual systems in our understanding of reality, for example, in class we talked about the classification of whales, are they fish or are they mammals? For the longest time it was believed that whales were fish because they are aquatic animals that are fish‐like, until it was discovered that they give birth to their offspring like mammals do. Because of this difference, they are now classified as mammals. Classifying and categorizing the things in the world around us helps us understand the reality we live in and the outside sources that interact/influence it. 2. Show clearly in no more than two sentences why subjective relativism can be argued to be self refuting/self‐contradictory. Subjective Relativism is self‐contradictory because if believe determines reality/truth, then false beliefs become impossible, disagreement would be pointless (epistemological problems w/ theory) and subjective relativism itself is both true and false, which is a logical contradiction since it is impossible to be both true and false. 3. What is wrong with the following subjective relativist’s argument: People disagree constantly over the truth of claims. This proves that subjective relativism about truth is correct. This argument is invalid because a subjective relativists’ idea of truth is that it is dependent on what a subject or individual believes it to be, so disagreements would be pointless. People wouldn’t bother disagreeing over the truth of claims if we were all a subjective relativist because our “truth” would be whatever we perceived it to be, while not making someone else’s “truth” untrue, since we each live in our own reality. Therefore, this argument is contradictory. 4. Explain how physical impossibility is used to critique pseudosceince(s), in general and through an example, ESP (extrasensory perception). Pseudoscience is a claim, belief or practice presentescientifi, but which does not adhere to thescientific metho. A field, practice, or body of knowledge can reasonably be called pseudoscientific when it is presented as consistent with thnorms of scientific research, but it demonstrably fails to meet these norms.Pseudoscience is often characterized by the following: contradictory, exaggerated ounprovable claims; over‐reliance oconfirmation rather thanrigorous attempts at refutati; lack of openness to evaluation by other experts in the field; and absence of systematic practices when rationally developing theories. The termpseudoscienceis often considerepejorativ, because it suggests something is being inaccurately or even deceptively portrayed as science. Accordingly, those labeled as practicing or advocating pseudoscience often dispute the characterizatioScience is distinguishable fromrevelatio,theology, orspiritualiin that it offers insight into the physical world obtained bempiricalresearch and testing. Commonly held beliefs ipopular sciencemay not meet the criteria of science. "Pop science" may blur the divide between science and pseudoscience among the general public, and may also involvscience ficti. Pseudoscientific beliefs are widespread, even among state schooscience teachers and newspaper reporters.Thedemarcationbetween science and pseudoscience has philosophicalandscientifiimplications. Differentiating science from pseudoscience has practical implications in the cashealth care,expert testimony,environmental policie, andscience educatio.Distinguishing scientific facts and theories from pseudoscientific beliefs such as those found inastrology,alchemy,medical quackery,occultbeliefs, andcreation science combined with scientific concepts, is part of science educationscientific literacy. ESP is an example of this because although tests to prove the existence of any of the ESP “powers” such as clairvoyance, telepathy, precognition, and psychokinesis. A glance at some early studies that are questionable are then explored. Next an innovative experiment involving virtual reality is examined in which significant results were not found. A study using classical conditioning follows again yielding poor results. Next an experiment carried out through the mail was cited which, again, does not yield significant results. A psychic named Uri Geller, who was popular in the 1970's is then shown to be fraudulant in his abilities to bend metal objects with his mind. Gellar is also shown to be a fraud on his proclaimed clairvoyance. Next it is shown that a large number of people want to believe in ESP phenomena and explanations are given as to why people want to believe. Neuroimaging techniques are then examined and show that there is no difference in brain activity during "psi hitting' verses 'psi missing. Ray Hyman's critique of Ganzfield experiments is then explored. James Randi is then looked upon in regard to his ESP testing website. Finally, Randi's $1,000,000 prize for demonstrating psychic abilities in the laboratory is called upon to leave the reader with no doubt that if someone had psychic abilities, this prize would have been collected long ago. 5. Explain how faith as a “source” of knowledge (as defined in lecture/textbook) contradicts a basic feature of justification. So define faith and justification and show the contradiction. Faith is not a “source” of knowledge because it contradicts a basic feature of justification. Knowledge is justified truth backed by evidence, whereas faith is a belief without evidence. Evidence (justification) is needed to prove knowledge, and faith cannot be proven. 6. Explain how mystical experience as an alleged alternative source of knowledge contradicts the most general and basic feature of the concept of knowledge. Define both (relevant) concepts and show contradiction. Mystical experience can’t be an alternative form of knowledge because knowledge itself can be indirect, since in order to pass knowledge on, one must use words, which are a form of representation. A mystical experience, on the other hand, by definition is ineffable (unexplainable, or unable to be represented), so there is a contradiction; can’t explain or represent the knowledge of a mystical experience, which requires first‐hand interpretations and interactions, which are direct. Part II 1. Describe in general terms the concepts “theory” and “phenomenon” and give an example of both in the context of astrology. The dictionary defines theory as, “a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.” An astrological example of a theory is following the Zodiac signs; believing that the alignment of the stars influence who we are and everything we do. Phenomenon (for philosophy/ our purposes) on the other hand is defined as, “the object of a person's perception; what the senses or the mind notice.” An astrological example of this the study of the stars itself; what we see when we observe the sky, which includes planets, far off galaxies and clusters of stars that we have named/identified to keep track of their position as our Earth moves. 2. Define the epistemological criterion of falsifiability and give an analyzed example of an unfalsifiable hypothesis from creation science. The epistemological criterion of falsifiability is whether or not a theory is genuinely scientific only if it is possible in principle to establish that it is false. This argues that genuinely scientific theories are never finally confirmed, because disconfirming observations (observations that are inconsistent with the empirical predictions of the theory) are always possible no matter how many confirming observations have been made. Scientific theories are instead incrementally corroborated through the absence of disconfirming evidence in a number of well‐designed experiments. An example of an unfalsifiable hypothesis from creation science is the lack of evidence of the global flood [biblical], which argues that if there was this global flood, there would be archaeological evidence such as the destruction of civilizations, or a mention of it somewhere other than the bible that is a credible source, but there is no such evidence of this catastrophic event. Part III 1. Describe the hypothetico‐deductive model of testing (the different elements of the model and also the relationships among the elements). Be also prepared to reconstruct pseudo/scientific cases into the hypothetico‐deductive mold, viz, identify theory, prediction, test result, and evaluation [confirmation/refutation] The hypothetico‐deductive model of testing: From the hypothesis, the researcher must generate some initial predictions, which can be proved, or disproved, by the experimental process . These predictions must be inherently testablefor the hypothetico‐deductive method to be a valid process. Example from homework: The Expanding Universe: One of the most interesting discoveries of the twentieth century is that the universe is expanding; that is, the galaxies are a moving away from each other. This discovery stimulated the creation of numerous models of systems in which such expansion would take place. Two of these models were widely regarded as possibly representing the structure of the real universeOne was an explosion model (the Big Bang theory) in which all matter is originally concentrated in one place and explodes outward. The other is a steadystate model, in which subatomic bits of matter are created out of nothing and eventually move outward, leaving each region of space with the same total amount of matter for all timIf the universe is an exploding system, it follows that the density of matter (the number of galaxies per cubic light year) gets less and less the farther away from the original explosion one get If the universe is a steadystate system, on the other hand, the density of matter should be exactly the same everywhere. This remains true wherever in the universe one happens to be.Whichever direction one looks, the density of the most distant galaxies should be less if the explosion model is cor To . decide which of these two models best fits the real universe, what we need to do is measure the density of matter in the most distant regions of space. In recent years radio telescopes have made it possible to make such measurements. These measurements show a clear decrease in the density of the most distant observable galaxies. ● THEORETICAL HYPOTHESIS: The structure of the real universe is an exploding system the Big Bang Theory. ● PREDICTION: The density of matter gets less and less the farther away from the original explosion one gets, meaning that the density of the most distant galaxies should be less if the explosion model is correct. ● TEST RESULT: The measurements from radio telescopes show a clear decrease in the density of the most distant observable galaxies. ● EVALUATION: This confirms the hypothesis The Big Bang Theory is correct in regards with that density decreases the further away one goes from the original explosion.
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