Length of time working at the computer and poor eyesight are negatively correlated. What should we conclude?
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Length of time working at the computer and poor eyesight are negatively correlated.
What should we conclude?
(a) People with poor eyesight are more likely to spend long hours working at the computer
(b) Working for long hours is likely to cause a deterioration of eyesight
(c) A particular type of personality may be more likely to both have poor eyesight and work long hours at the computer
(d) Any of the above are possible – correlation does not imply causation
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Statistics Without Maths For Psychology Using Spss For Windows
ISBN: 9780132051606
4th Edition
Authors: Christine P. Dancey, John Reidy
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