Midterm 1 - Version C - Multiple Choice - Psychology60Spring,2010Midterm1Given PSYCHOLOGY60 SPRING,2010 MIDTERM1 Tuesday,April20th,2010 FULLNAME

Midterm 1 - Version C - Multiple Choice -...

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Psychology 60 – Spring, 2010 – Midterm1 – Given 4/20/101PSYCHOLOGY60SPRING, 2010MIDTERM 1Tuesday, April 20th, 2010FULL NAME ___________________________________________________________________________________STUDENT ID __________________________________________________________________________________Please put your name and ID number on this page AND on the Scantron form.VERSION C
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Psychology 60 – Spring, 2010 – Midterm1 – Given 4/20/1031)Which of the following students scored highest on his/her quiz relative to the other studentsin his/her class? (Each of the five students took quizzes in different classes.)a.Allen: Score = 65. Quiz mean = 80. Z‐score = ‐5.b.Barbara: Score = 42. Quiz mean = 36. Z‐score = +2.c.Chris: Score = 98. Quiz mean = 81. Z‐score = +1.d.Davina: Score = 64. Quiz mean = 65. Z‐score = ‐1.e.Enrique: Score = 56. Quiz mean = 40. Z‐score = +4.*2)If it is not possible to divide the existing categories of a variable, then it is an example of a_________ variable.3)The value of one score in a distribution is changed from X = 20 to X = 30. Which measure(s) ofcentral tendency is (are) certain to be changed?4)Twenty‐five patients are taking a test to determine if they have a particular cognitive disorder.One definition for having this disorder is scoring below 90% of the population on a particularcognitive task. The population mean score for this task is 50, with a standard deviation of 5. Inthe sample of 25, the mean score on the task is 45 with a standard deviation of 4. In thepopulation, performance on this task is normally distributed. The doctor is trying todetermine at what score he should diagnose patients with this disorder. Help him bydetermining approximately what score should be used for the diagnosis.5)A population of scores has μ = 44. In this population, a score of X = 40 corresponds to z = ‐1.00.What is the population standard deviation?a.2b.4*c.‐2d.‐4e.cannot determine from the information given
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Psychology 60 – Spring, 2010 – Midterm1 – Given 4/20/104
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