We examined whether 2 types of interpolated tasks (i.e., retrieval-practice via free recall or guessing a missing critical item) improved final recognition for related and unrelated word lists relative to restudying or completing a filler task. Both retrieval-practice and guessing tasks improved correct recognition relative to restudy and filler tasks, particularly when study lists were semanti...

Abstract Consider the following experiment: a deck with m copies of n different card types is randomly shuffled, and guesser attempts to guess cards sequentially as they are drawn. Each time made, some amount ‘feedback’ given. For example, one could tell true identity just guessed (the complete feedback model) or be told nothing at all no model). In this paper we explore partial model, where up...

We (Fu, Dienes, & Fu, 2010) investigated the extent to which people could generate sequences of responses based on knowledge acquired from the Serial Reaction Time task, depending on whether it felt subjectively like the response was based on pure guessing, intuition, conscious rules or memories. Norman and Price (2010) argued that in the context of our task, intuition responses were the same a...

We discuss how we use neural networks to accurately measure password strength, and how we use this capability to build effective password meters. First, we show how neural networks can be used to guess passwords and how we leveraged this method to build a password guesser to better model guessing attacks. We report our measurements of the effectiveness of neural networks at guessing passwords, ...

Rapid guessing is a test taking strategy recommended for increasing the probability of achieving high score if time limit prevents an examinee from responding to all items scale. The requires quickly and without cognitively processing item details. Although there may be no omitted responses after participants' rapid guessing, open question remains: d...

Online password guessing attacks are a serious threat to the integrity of online accounts. A common defense is ratelimiting, either by slowing down or blocking connections, or by requiring CAPTCHAs to be solved. Either of these options has serious drawbacks, facilitating denial of service attacks, being circumventable by proxies and CAPTCHA solving services, and offering bad usability to the le...

Yamaguchi, Okayama, and Miyahara proposed a simple but efficient authentication system, SPLICE/AS. In this article, we show that their method is vulnerable to the guessing attack. An attacker can obtain the password, private-key, and public-key of the user. To overcome the vulnerability of SPLICE/AS to the guessing attack, we propose an improvement of their system. In our scheme, we not only pr...