ex3ab02 - Exam 3, Biology 301D, 13 November 2002 104 points...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Exam 3, Biology 301D, 13 November 2002 Printed name (required) ________________ 104 points possible 1 . (4 pts.) (2pts) Key Code : Fill in ( A ) and ( B ) on scantron question 1. to indicate your exam code. (2pts) Social security number and name . Bubble in the scantron with your name and your social security number (your SSN goes in the first 9 bubbles of the scantron ID field). Put your name on this hard copy , or you may not get credit for taking the exam. When finished , turn in both the Scantron and hard copy. You may write on this hard copy, but your grade will be determined by the Scantron form, provided we can find a hard copy from you . None, one, all, or any combination of individual answers may apply to a question unless stated otherwise . We use the acronym “ NOM” for “None, One, or Many.” As usual, phrases in italics may be taken as true . Turn in your exams by the end of the hour. A penalty may be assigned for late exams.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
The language of evaluation and interpretation 2. (7 pts) The following statements pertain to the introductory lecture on evaluation. Which are true? (NOM). (A) A model is considered to be refuted (rejected) if the data are inconsistent with it. (B) Data that do not support a model cannot then be consistent with that model. (C) By definition, once a model has been accepted, that model cannot be refuted in further tests. (D) The criteria for acceptance of a model are rigid in science and society, and there is little room for legitimate disagreement as to whether a model should be accepted or not. (E) A null model is part of every properly designed study. If a study lacks a null model, then it has not been properly designed. (F) A null model is the same as a control for a study. (G) If you are not registered for CPS in this class, then a record of your attendance will be irrelevant to your grade. Correlations 3. (5 pts) Which options describe non-zero correlations (=any correlation that is defined but is not zero)? NOM (A) Students are more anxious and likely to pack up books just before end of the lecture hour than at its beginning (B) People living in shelters for the homeless are more likely to have TB than people not living in the shelters (C) UT students are just as likely to party on Friday night as on Saturday night 4. (5 pts) Which points about correlations are true? NOM (A) Simple correlations are consistent with many causal models (B) A zero correlation between X and Y means that neither X nor Y varies (C) If we know the strength of the correlation between variables X and Y, then we know how the average value of Y tends to change as X changes (D) It is not possible to determine whether a correlation exists when one of the variables is “country of residence,” because a value cannot be assigned to this kind of variable.
Background image of page 2
5-7. (3 points each) Researchers have discovered that heart disease is lower in France than in the U.S. One suspected cause of this difference is wine consumption, because daily wine consumption is much higher in France than in the
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/20/2010 for the course BIO 301D taught by Professor Bull during the Spring '08 term at University of Texas at Austin.

Page1 / 8

ex3ab02 - Exam 3, Biology 301D, 13 November 2002 104 points...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online