anonymous
  • anonymous
Help please...
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
A large group of teenagers is divided into two smaller groups of 125 each, and each group watches a different movie. One group watches a love story while the other group watches a movie containing several scenes with violence. The teenagers are then asked questions to uncover unconscious associations and determine their level of aggression. I. What is the population? II. What is the sample? III. Is the study observational or experimental? Justify your answer. IV. What are the variables? V. For each of those variables, what level of measurement (nominal, ordinal, interval, or ratio) was used to obtain data from these variables?
sirm3d
  • sirm3d
the population is the the group of respondents, in this case, 250 teenagers. the sample is 125 in either movie category.
anonymous
  • anonymous
Okay

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sirm3d
  • sirm3d
when you ask, that is observational. when you measure, that is experimental.
anonymous
  • anonymous
sorry
anonymous
  • anonymous
What would be considered the sample?
sirm3d
  • sirm3d
125 teenagers in each movie category.
anonymous
  • anonymous
okay was confused there for a minute
sirm3d
  • sirm3d
a study is observational when you gather "answers" from respondents. this answers are generally subjective. in an experimental study, the responses are actually measured, like the number of mg of a drug administered to a lab. animal.
sirm3d
  • sirm3d
the variables being measured in the study are unconscious association and level of aggression.
anonymous
  • anonymous
So would you say the variables would be ratio or interval due to the questions asked?
sirm3d
  • sirm3d
yes
anonymous
  • anonymous
yes to which there was 4 choices?
sirm3d
  • sirm3d
my take is on interval.
anonymous
  • anonymous
okay I knew it had to have been one of the last 2 choices simply because of the numbers and the people asked I was going to take interval because it was asking the teens the questions
sirm3d
  • sirm3d
i take back my answer. it would be ratio, since there is an absolute zero level of aggression.
sirm3d
  • sirm3d
furtermore, a level 6 of aggression is considered to be 3 times as much as a level 2 aggression.
anonymous
  • anonymous
oh okay didn't know that
anonymous
  • anonymous
I have 3 more questions to do
sirm3d
  • sirm3d
the difference between between interval and ratio is in the concept of absolute zero. 0 degree temperature does not mean no temperature, so temperature is interval.
anonymous
  • anonymous
Oh okay now I understand it a little better

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