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The moon darkened, reddened, and turned shades of gray and orange Saturday night during the first total lunar eclipse in nearly three years, thrilling stargazers and astronomers around the world.

wendy-ferguson
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  1. The moon darkened, reddened, and turned shades of gray and orange Saturday night during the first total lunar eclipse in nearly three years, thrilling stargazers and astronomers around the world. The Earth's shadow took over six hours to crawl across the moon's surface, eating it into a crescent shape before engulfing it completely in a spectacle at least partly visible on every continent. http://news.yahoo.com

  2. QUIZ #4An antecedent stimulus that sets the occasion for the imitative behavior is: A. a chaining of behaviors B. an imitative response chain C. an operative behavior D. a model

  3. 2. DRL stands for Differential Reinforcement of Low Rates. a. True b. False

  4. 3. Which of the following is an intermittent schedule of reinforcement? a. Variable Ratio (VR) b. Fixed Interval (FI) c. Both a and b

  5. 4. Gradually increasing the response ratio or the extent of the time interval of a schedule of reinforcement is called A. Schedule thinning B. Schedule adjunction C. Schedule priming D. Schedule fixing

  6. 5. The Variable Ratio Schedule of reinforcement tends to produce a A. High Rates of response B. Low Rates of Response C. Suspended Rates of Response D. No rate of response

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