I have doubts about my intelligence. I'm trying to get a Data Science internship and had several interviews. All of them were on combinatorics/algorithms, and I failed them, though they were relatively simple. I’ve always been bad at this kind of stuff: I have trouble focusing, especially paying attention to details. I also forget things all the time
I’m a 3rd-year student at a university which is considered prestigious here (Russia), but getting in was rather because of my high conscientiousness, not intelligence. I’ve always been average academically, but when needed, simply outworked everybody and got decent grades. It doesn’t seem to work this time. In my country, there aren’t many DS internships, so if I fail a few more interviews, not sure if I can find new opportunities soon. It makes me sad, as I have to find a job for this summer
Recent average grades at uni/failed interviews in combination with all above made me seriously question my intelligence. There is no Mensa club in my country, but I tried to find reliable IQ tests online: got 86 and 135 on two different ones, have no idea what to make of it. My degree is in economics/mathematics, but I’ve been programming since 16, so I thought DS would suit me as a combination of both. In general, I just really love building stuff with my hands (got some personal projects which employers liked), and making smth with ML seemed cool
Is there a way to tell if I’m simply not smart enough for this? It’s not just about interview questions: I genuinely feel I’m thinking too slow in general, always felt. Should I try to move to other fields? I’d be glad to find any other technical internship, at least for now, but I have no CS degree which is a requirement for them.
I would welcome any advice because the situation kind of depresses me
I have a PhD. I have had titles like "Principal Data Scientist","Senior Manager, Data Science" etc. Most of my colleagues think I am good at what I do. I would absolutely fail an interview where they ask these kinds of questions. I would need to revisit my probability and other textbooks for at least a few months to be able to pass these kind of questions.
Being able to pass these types of interviews is a learned skill. I would recommend you look at it that way and disconnect it from "intelligence" or from the value you can bring as a data scientist.
As far as the slow thinking, most jobs allow you to think slowly and work through things. You can make mistakes and fix them. There is no job where somebody says "We will release the hungry tigers on a plane full of children unless you solve a algorithm problem in 60 seconds."
>In my country, there aren’t many DS internships, so if I fail a few more interviews, not sure if I can find new opportunities soon.
I think this is the root of the issue. If there are only a few internships and lot of applicants, the employers can be as demanding or as harsh as they want. So it's really a reflection of the job situation, not you personally.