The graph shows one user’s scores on each of 8 tasks in a pilot test of an online cognitive training program. The program provides each user with training on 2 separate tasks in each of 4 categories—attention, memory, planning, and reasoning. For each task, the user takes two tests—a pretest before training begins and a posttest after training ends—each of which is scored on a 0–100 scale. For both the pretest and the posttest, each user is assigned a category score equal to the sum of the scores on the 2 tasks in that category.
From each drop-down menu, select the option that creates the most accurate statement based on the information provided.
The percent increase in the user’s category score from pretest to posttest was greatest in the __________ category, where the category score increased by approximately __________.For the first blank, we have to find the increase in the user's "category score." So, we have to be careful to note that, in the passage, the category score is defined as the following:
the sum of the scores on the 2 tasks in that category So, the category score is the sum of two scores.
Now, we can answer this question quickly if we notice the following:
For all categories, the the total increase in category score was 40.
Attention: 15 + 25 = 40
Memory: 25 + 15 = 50
Planning: 20 + 20 = 40
Reasoning 30 + 10 = 40
So, the only factor that will affect the size of the percent increase in category score for each category is the base score, i.e. the sum of the pretest scores for the category.
So, the category with the greatest percentage increase in category score will be the one such that the sum of its pretest scores is lowest.
Just looking at the columns, we can quickly see that Planning has the two pretest bars such that their sum is the lowest. After all, Planning 1 has the lowest pretest bar of all, and Planning 2's pretest bar is only slightly bigger than the pretest bar of Memory 1, whereas the Memory 2 pretest bar is much bigger than the Planning 1 pretest bar.
So, Planning is the category with the greatest increase in category score.
Select
planning.
Now, for the second blank, just divide 40 by the sum of the Planning pretest scores and multiply by 100 to get the percentage increase.
40/(20 + 45) × 100 = 40/65 × 100 = a little less than 2/3 × 100
The choice in the dropdown that is a little less than 2/3 × 100 is 62.
Select
62.
Correct answer: planning,
62