Welcome to the
Science Ideas Questionnaire. Please take a few moments to answer all questions
in each of the four sections below. Thank you for your time and participation.
- Please enter your Columbia e-mail address
NOTE: Only enter your Columbia e-mail address, no other e-mail address is allowed
I. Please rate the following items on the scale to the right:
II. How likely would you be to pursue each of these careers?
III. Please think about your career choices after
college. Don't focus on your first post-college job, rather, think about plausible
or hoped-for careers, which could occupy you for a number of years. As you
think about the positive and negative aspects such careers, how important
to you is each of the following goals?
IV. For each of the following multiple choice
questions, choose the one answer you believe to be the most correct.
63. A certain uncommon disease is known to be the correct diagnosis in about
5% of all women who present a particular set of symptoms. There is a simple
test for this disease. It gives positive results in almost every case where
the testee is actually suffering from the disease; but it also gives positive
results in about 1 out of 10 testees who do not have the disease.
Your current patient has the symptoms in question
and has a positive test result. What is the probability that she has the disease?
64. Suppose that the effects of two different enrichment procedures for teaching
elementary mathematics are evaluated. Enrichment (1) produces an observed
average improvement of 0.3 grade level on standard tests, and this result
is statistically significant at the .001 level. Enrichment (2) produces an
observed average improvement of 0.6 grade level and this is statistically
significant at the .05 level.
Consider the following two questions:
Which finding is more likely to be replicated, in
a new study that is similar to the original study?
Which enrichment is more promising for follow-up?
65. Three astronauts are floating free outside their orbiting capsule. Two
of them decide to play catch using the third as a ball. All the astronauts
weigh about the same amount on Earth, and are about equally strong. How long
will the game last?
66. What is the main reason that the tropics are warmer than the polar regions
Sunlight strikes the Earth more directly in the tropics, at more of
an oblique angle in the polar regions
67. Which part of the electromagnetic spectrum accounts for the largest outflow
of energy emitted by the Earth to space?
68. A high C from an opera diva is capable of shattering a glass. A stereo
manufacturer advertises the quality of his receiver/amplifier by demonstrating
that a radio broadcast of the same aria, using his system, can also shatter
the glass. Why, since the aria is being broadcast by the station anyway, doesn't
the glass break even with the stereo turned off?
69. Two balloons that have the same weight and volume are filled with equal
amounts of helium (which is less dense than air and, therefore, causes the
balloon to "float"). One balloon is rigid and the other is free
to expand or contract as the external pressure changes. Which balloon will
rise higher when released?
70. Suppose you want an accurate measurement of a person's resting heart rate.
Which is apt to be least accurate?
71. Which is apt to be the most accurate?
72. I once flew over Manhattan in a helicopter from Newark to Kennedy airports.
To estimate how high we were flying, I held out my thumb (1/2" across)
at 2 feet from my eye, and noticed that it just covered the full length of a taxicab on the
street below. About how high were we flying?
73. Milk made radioactive by strontium 90 can be rendered both safe and nutritious
74. The temperature at the center of the earth is:
75. Antibiotics kill:
76. The oxygen we breathe:
78. When there is a full moon in New York, residents of Sydney will, about
12 hours later, see:
79. The following represents a correct ordering by time of appearance on Earth,
earliest to most recent:
80. Phases of the moon are caused by:
81. The following is a correct ordering, largest to smallest in mass:
82. The following is a correct ordering, largest to smallest in mass: