In 2010,a Group of 20-Year-Old Individuals Take a Test of Spatial

question 9

Multiple Choice

In 2010,a group of 20-year-old individuals take a test of spatial ability.We already have the scores earned by a group of 20-year-old individuals who took the same spatial abilities test 30 years earlier in the year 1980.If the 20-year-olds who took the test in 2010- earn higher scores than the 20-year-olds who took the test in 1980,we can say that there is ______________.

• A)a swan-song phenomenon for spatial ability
• B)a positive cohort trend for spatial ability
• C)no valid way to measure spatial ability
• D)no cross-sectional age finding

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