But scores that correlate well are still just averages, and are not wise to apply to individuals as you do in your closing statement. IQ tests like progressive

But scores that correlate well are still just averages, and are not wise to apply to individuals as you do in your closing statement. IQ tests like progressive matrices are still very particular, specialized mental activities. Over a population of people, yes it tracks well, since general intelligence coefficient tells us all intelligences are correlated. On average a person with high IQ is smart at any other given activity. But for a particular individual, it's still perfectly normal to see large differences in testing one type of intelligence compared to another.