I think there are multiple issues at play, but I would argue that the lack of reading leads to the declines in the other two.
If pupils are used to immediate answers and summaries rather than having to digest that info for themselves, then I'd argue this is the result.
The PISA scores of 15-year-olds across the world have been declining for a decade. Are our young getting dumber because of smartphones, because the school system isn’t up to scratch? Serious issue! Source:
bit.ly/4zXPj6g