Do you underline when you read books?
Regarding this, the effectiveness is actually being denied, but upon closer examination, it was mentioned that the accuracy rate drops in relation to inference.
The study being introduced had subjects who were students majoring in education, and they were given a test after reading a 10,000-word history book. The book was read for 90 minutes and then collected. The subjects were divided into the usual "underline" and "do not underline" groups for the test, but to ensure fairness, the investigation was conducted according to the following steps:
Read for 90 minutes.
Collect the book.
One week later, take the test, and review the book distributed earlier for 15 minutes.
Take the test again one week later, without reviewing.
By the way, the contents of the test were half memory (memory test) and half inference.
And as for the results, the underlined group scored lower in the inference section. (There was no difference in memory.) Inference in a history book may be somewhat arbitrary, but it is worth considering that the ability to think may be impaired by underlining a book. The reason for this, according to the researchers, is that "by underlining, attention is drawn to individual concepts rather than the necessary relationships between them for inference."
In summary, this study suggests that underlining while reading a book may not be helpful. Even though I am writing this, I tend to underline too, but please take this as a reference.