Assignment: Correlation Statistics
Assignment: Correlation Statistics
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Question: A negative correlation between a hockey player’s age and the number of minutes he spends in the penalty box indicates that:
the older a player is, the less time he spends in the penalty box.
spending more time on the ice leads hockey players to become skilled at avoiding the referees.
an older player’s greater experience has taught him how to avoid making penalties.
older players make fewer penalties because they have reduced testosterone levels.
Flag this Question Question 22 pts Gretchen, an adult, takes an intelligence test and it shows she has slightly above average intelligence. Four years later, she has the chance to take the same test again. This time it reports that she is a genius. While she wants to believe the results, she wonders if the inconsistency of results over time might mean the test:
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is poorly correlated with intelligence.
has low test–retest reliability.
has high split-half reliability.
has a high coefficient alpha.
Flag this Question Question 32 pts Researchers who study the process of reading in children have discovered that better readers make smoother eye movements across the page (i.e., there is a positive correlation between reading skill and the smoothness of the eye movements). Which of the following statements is a possible cause of the correlation between smooth eye movements and reading ability?
Having good reading skills allows a child to make smooth eye movements.
All of these options are possible causes of the correlation.
The ability to make smooth eye movements improves reading ability.
Some third factor might cause both smooth eye movements and improved reading ability.
Flag this Question Question 42 pts What is the correlation between a person’s weight as measured in grams and a person’s weight as measured in pounds?
+1.00
–1.00
0.00
It is impossible to determine from the information provided.
Flag this Question Question 52 pts The model of possible causal explanations for a correlation is called the:
A-B-C model.
cause-and-effect model.
causal explanation model.
1-2-3 model.
Flag this Question Question 62 pts “The incidence of depression among college students is negatively correlated with the number of sunny days each year in the locale where they attend college.” This statement means that:
if a depressed student were to move to a locale with more sunny days, her depression would subside.
a student attending college in a locale with very few sunny days will become depressed.
the chances of a college student being depressed tend to increase as the number of sunny days increases.
the chances of a college student being depressed tend to be higher with fewer sunny days.
Flag this Question Question 72 pts A positive correlation between head size and foot size indicates that: