How does Charlie's opinion of the Rorschach test change during the story?
At first he thinks the tester is trying to trick him. Then he discovers there is nothing to the test.
At first he does not understand how it works. Then he becomes suspicious, thinking that what he is being asked
to do is too easy
At first he enjoys the test because he can easily see things. Then he stops seeing things in the blots.
His opinion of the test remains the same.

Charlie's opinion of the Rorschach test changes in the story as :

"At first he thinks the tester is trying to trick him. Then he discovers there is nothing to the test."

Explanation:

In the story, "Flowers For Algernon", Charlie is selected for a one of it's king surgery where doctors are trying whether one's intelligence can be increased by operating on the brain.

He is selected as he is otherwise a mentally dull person. After the surgery, he is being put through a series of tests, Rorschach being one of them.

When Burt tells him to view the inkblots and mention what he can see in them, Charlie gets confused as he can see nothing but abstract ink bolts.

In the process, he thinks this is a trick being played by the examiner, but yet is not able to view anything in the test.

This way, his opinion about the test changes, and rather gets frustrated as he feels he is not performing well in the test.

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia