RTbox: A device for highly accurate response time measurements

Although computer keyboards and mice are frequently used in measuring response times (RTs), the accuracy of these measurements is quite low. Specialized RT collection devices must be used to obtain more accurate measurements. However, all the existing devices have some shortcomings. We have developed and implemented a new, commercially available device, the RTbox, for highly accurate RT measurements. The RTbox has its own microprocessor and high-resolution clock. It can record the identities and timing of button events with high accuracy, unaffected by potential timing uncertainty or biases during data transmission and processing in the host computer. It stores button events until the host computer chooses to retrieve them. The asynchronous storage greatly simplifies the design of user programs. The RTbox can also receive and record external signals as triggers and can measure RTs with respect to external events. The internal clock of the RTbox can be synchronized with the computer clock, so the device can be used without external triggers. A simple USB connection is sufficient to integrate the RTbox with any standard computer and operating system.     

Modeling Within-Item Dependencies in Parallel Data on Test Responses and Brain Activation

Psychometrika - In this paper, we propose a joint modeling approach to analyze dependency in parallel response data. We define two types of dependency: higher-level dependency and within-item...     

小学生创造性人格教师评定问卷的编制及信效度检验

为探索小学生创造性人格结构,本研究编制了小学生创造性人格教师评定问卷。按照问卷编制标准化流程对全国14个城市、5141名小学生进行大样本测查,经过项目分析、探索性因素分析、验证性因素分析对初始问卷进行验证,最终编制的正式版问卷包含七个维度：独立性、合作性、自信心、成就感、敏感性、新异性、好奇心。小学生创造性人格教师评定问卷具有良好的信效度,可以作为我国小学生创造性人格的有效测评工具。