wˈʌn stˈʌdi fˈaʊnd ðæt θˈɜːɾi ˈeɪt pɚsˈɛnt ʌv tˈɑːp ɐmˈɛɹɪkən jˌuːnɪvˈɜːsᵻɾiz kˈæp ðə tˈoʊɾəl ɐmˈaʊnt ʌv ˌeɪpˈiː kɹˈɛdɪts ðæt stˈuːdənts kæn ɹᵻsˈiːv kɹˈɛdɪt fɔːɹ.
One study found that 38% of top American universities cap the total amount of AP credits that students can receive credit for.