Question

Disappointed by the poor predictive quality of his test, the school psychologist now attempts to school psychologist now tries to improve the vocabulary test. The vocabulary test works like this: The school psychologist and a child sit opposite each other. The diagnostician reads a word aloud. The child must choose one of four pictures that best matches the word. matches the word. The words are divided into different levels of difficulty. If the child can correctly match a word to a difficulty level, it is assumed that this level has been reached. it is assumed that this level has been reached. a) What is the guessing probability for this test, i.e. with what probability can a child guess the correct solution? probability can a child guess the correct solution?

Answer 1

The guessing probability for this vocabulary test is 25%.

Step-by-step explanation:

The guessing probability for this test can be calculated by determining the number of choices and the number of correct answers for each question. In this case, the child has four pictures to choose from and only one of them is correct. Therefore, the probability of guessing the correct solution is 1 out of 4, which simplifies to a probability of 0.25 or 25%.