1. A computerized testing method comprising the steps of: (a) providing, in a computer, one or more multiple-choice questions and displaying those questions on an output device of the computer, each question comprising a query and a plurality of answer choices, wherein said plurality of answer choices comprises one correct answer and one or more incorrect answers; (b) for at least one of said one or more incorrect answers, prompting a test-taker to produce, and enter into an input device of the computer, a follow-up query to which said one of said one or more incorrect answers is a correct answer; (c) determining by said computer or by at least one computer connected to the computer via a computer network or a communication network, if said one of said one or more incorrect answers is a correct answer to said follow-up query.