Human-computer interaction: A preliminary social psychological analysis

Considering an interactive computer as a social stimulus suggests that contemporary social psychological theories can contribute to the prediction of user attitude and performance. In order to assist in the systematic exploration of this possibility, we developed DIALOGUE, an on-line system to investigate the effects of varying the computer’s responses to the user. This system involves a presentation program that displays the computer’s responses, performs the pacing of video information, and collects a variety of measurements, including the user’s response time and the number of correct/incorrect user responses. DIALOGUE also includes a data manager that allows the experimenter to examine or modify the information collected by the presentation program. Utilizing DIALOGUE, we conducted a preliminary investigation of one aspect of human-computer interaction, the effects of varying the degree of human-like responses exhibited by the computer. Results suggest that (1) there are underlying dimensions of judgment involving perception of interactive computers, (2) a manipulation of human-like computer responses is reflected primarily in certain of these dimensions, and (3) such a manipulation influences user performance and feelings of responsibility. Factors related to the implementation of DIALOGUE are considered, and its potential for investigations of a variety of human-computer interactions is discussed.     

Evaluating Triple P Online: A Digital Parent Training Program for Child Behavior Problems

Triple P Online (i.e., TPOL; www2.tripleponline.net) is an online self-help parent training program aimed at reducing child behavior problems through “positive parenting practices”—available at time of review for $79.95. TPOL is comprised of 8 video-based modules that also incorporate in-session activities and homework. Randomized control trials have shown that TPOL effectively reduces child behavior problems. The program’s main strengths include very high-quality content with an abundance of relevant and easily locatable resources, an easy-to-use interface, and a professional look and feel. The program’s main weakness lies in its lack of monitoring and adaptation to the user’s state (e.g., child’s and parent’s behaviors), and real-time reminders for desired actions. Altogether, TPOL is an extremely valuable and important resource for families seeking evidence-based treatment for child behavior problems.     

Modeling on the simulation writer interactive program

The Simulation Writer Interactive Program (SWIP) is an extension of the Michigan Experimental Simulation Supervisor program series, and is designed to permit individuals who are not skilled programmers to create numerical simulation models, primarily for instructional purposes. SWIP elicts from the user information about the manipulable (independent), central (intermediate), and observable (dependent) variables in the user’s model, as well as any necessary tables and control information. A powerful editor is available within SWIP for making modifications. SWIP deduces the structure of the user’s model from the information about the variables, and produces an interpreted version of the model which is used to generate simulated data. A variety of model structures are possible in SWIP, including multivariate models, models for repeated measures experiments, and timeseries models. A context-dependent question-answering facility is also available.     

Development and operating environments for a network of Walter/Palya experiment controllers on the Macintosh computer

A program development and an operating environment for using the Walter/Palya experiment controller with a Macintosh are discussed. The importance in maintaining the productivity and intuitive aspects of the Macintosh’s user interface is stressed. With this environment, simple choices using the mouse control most aspects of developing and debugging programs and the day-to-day conduct of research.     

DISTANGLE: A FORTRAN program to analyze and simulate spacing behavior of animals

A FORTRAN IV program, DISTANGLE, was written to aid in analysis of orientation and spacing parameters among groups of animals within enclosures. The 700-statement program requires, as minimum input, individual animal identification, each animal’s X and Y coordinates on a grid basis, and each animal’s angle of orientation on a 360-deg basis. The program was designed to give versatility to the user. Input may be raw data from cards or simulated (random) observations generated by the program. The program calculates distances among group members and determines angle relationships among selected individuals. Frequency of nearest neighbor relationships, frequency of positioning of animals at locations within the enclosure, and movement distances are determined. DISTANGLE will determine the angles any two animals of a group would have to turn to be facing each other, regardless of their locations and/or orientations within the enclosure. The program permits analyses of spatial relationships among a maximum of 50 animals, either actual or simulated, per observation. Shape of enclosure can be either a square, a circle, or a triangle.     

P1198: Software for tracing decision behavior in lending to small businesses

This paper describes a process-tracing software program specially designed to capture decision behavior in lending to small businesses. The source code was written in Lotus Notes. The software runs in a Web browser and consists of two interacting systems: a database and a user interface. The database includes three realistic loan applications. The user interface consists of different but interacting screens that enable the participant to operate the software. Log files registerthe decision behavior of the participant. An empirical example is presented in order to show the software’s potential in providing insights into judgment and decision making. The implications of the software are discussed.     

A software tool for auditory and speech perception experimentation

A computer program capable of supporting auditory and speech perception experimentation is described. Given a continuum of acoustic stimuli, the program (Paradigm) allows the user to present those stimuli under different, well-known psychophysical paradigms (simple identification, identification with a rating scale, 2IAX, ABX, AXB, and oddity task). For discrimination tests, both high uncertainty (roving designs) and minimal psychophysical uncertainty (fixed designs) procedures are available. All the relevant time intervals can be precisely specified, and feedback is also available. Response times can be measured as well. Furthermore, the program stores subjects’ responses and provides summaries of experimental results for both individual subjects and groups. The program runs on Microsoft Windows (3.1 or 95) on personal computers equipped with any soundboard.     

Computing aspects of power for multiple regression

Rules of thumb for power in multiple regression research abound. Most such rules dictate the necessary sample size, but they are based only upon the number of predictor variables, usually ignoring other critical factors necessary to compute power accurately. Other guides to power in multiple regression typically use approximate rather than precise equations for the underlying distribution; entail complex preparatory computations; require interpolation with tabular presentation formats; run only under software such as Mathmatica or SAS that may not be immediately available to the user; or are sold to the user as parts of power computation packages. In contrast, the program we offer herein is immediately downloadable at no charge, runs under Windows, is interactive, self-explanatory, flexible to fit the user’s own regression problems, and is as accurate as single precision computation ordinarily permits.     

PC operating system for measuring discrete biological responses during classical conditioning

A software package, written in C source code for MS-DOS 5.0 or higher IBM-compatible computers, was developed for the classical conditioning of discrete biological responses. The program’s primary functions include collecting and storing conditioning parameters, controlling presentation of stimuli, transforming discrete analog responses into dependent measures (e.g., CR frequencies and various measures of response topography), and generating data sets for use with commercial PC statistical packages. These functions were implemented in a windows-based user interface to increase the experimenter’s ease of use and to maximize efficiency in performing experimental procedures. Scrollable windows provide detailed visual displays that permit monitoring responses during conditioning and a review of each trial after the session is over. Additional software tools aid the visual inspection of response topographies, data manipulation, and calibration of the experimental apparatus. An overview of the system, its design objectives, and the user interface is presented.     

Bioinspired decision-making for a socially interactive robot

Nowadays, robots and humans coexist in real settings where robots need to interact autonomously making their own decisions. Many applications require that robots adapt their behavior to different users and remember each user’s preferences to engage them in the interaction. To this end, we propose a decision making system for social robots that drives their actions taking into account the user and the robot’s state. This system is based on bio-inspired concepts, such as motivations, drives and wellbeing, that facilitate the rise of natural behaviors to ease the acceptance of the robot by the users. The system has been designed to promote the human-robot interaction by using drives and motivations related with social aspects, such as the users’ satisfaction or the need of social interaction. Furthermore, the changes of state produced by the users’ exogenous actions have been modeled as transitional states that are considered when the next robot’s action has to be selected. Our system has been evaluated considering two different user profiles. In the proposed system, user’s preferences are considered and alter the homeostatic process that controls the decision making system. As a result, using reinforcement learning algorithms and considering the robot’s wellbeing as the reward function, the social robot Mini has learned from scratch two different policies of action, one for each user, that fit the users’ preferences. The robot learned behaviors that maximize its wellbeing as well as keep the users engaged in the interactions.     

A low-cost interactive coordinate plotter

An inexpensive system for on-line coordinate plotting is described. Users with access to a computer running ALGOL or FORTRAN, and equipped with analog-to-digital converters, can build the system for less than $50. The program is readily modified for the individual user’s requirements, and interactive features allow data correction and analysis to be carried out during coordinate plotting, with operators warned of plotting errors as they occur.     

Using natural-language responses in microcomputer research

A microcomputer natural-language interface is described that will identify limited natural-language input, such as that obtained in psychological research. In the task studied, subjects made natural-language requests involving 13 DOS commands, A Bayesian algorithm is used to calculate a vector of 13 probabilities expressing the relative likelihood of various DOS tasks that the user was attempting to specify from keywords extracted from the user’s input. The algorithm’s first-guess accuracy in the limited domain studied is approximately 90%; it will identify the user’s request with 99% accuracy in its first three guesses. This performance is considerably better than that of human experts performing the same task with the same input. Also discussed are issues of cross-validation, robustness, conditional independence, and the calibration of the algorithm’s probabilistic output.     

The Rev.: An IBM BASIC program for Bayesian test interpretation

The Rev. is a BASIC computer program for IBM-PC-compatible systems that provides Bayesian estimates of “true” scores from multiple scores measuring the same construct. Psychological reports often include test scores from earlier evaluations without objectively incorporating them into current findings. Using Thorndike’s formulas for objectively combining test scores while providing estimates with reduced standard errors, the Rev. is an interactive program that facilitates test interpretation by combining information from many test administrations. The user provides four easily obtainable pieces of information for each test administration. The output includes an estimated “true” score and the standard error of the estimate.     

Graze: A program to analyze recordings of the jaw movements of ruminants

Graze is a user friendly, Microsoft Windows 95/NT program for analyzing jaw movement recordings taken with the IGER Behavior Recorder. The program displays a plot of the jaw movement amplitude (vertical axis) against time (horizontal axis). Individual jaw movements can be automatically identified, using amplitude and frequency criteria specified by the user. Bouts of jaw movements can then be analyzed and are automatically identified as either grazing or ruminating. Behaviors other than grazing and ruminating (such as drinking or eating supplements) can also be identified and marked by the user. Identified jaw movements and bouts of behavior are superimposed on the jaw data display. Finally, the user can perform a bout analysis, which discriminates between bites and chews during eating and generates a summary file.     

Fractional Design Wizard: A computer program for cost-effective experimental research design

The computer program Fractional Design Wizard creates fractional factorial designs that are cost-effective and especially useful for discarding irrelevant factors from a large number of possible candidates. The program is intended for researchers who are relativelynew to the field of fractional design and who want to acquaint themselves with the use of fractions for the reduction of large experimental designs. Fractional designs allow estimation of main effects, and sometimes two-way interactions, without one’s having to examine all treatment conditions. The program needs Microsoft Windows 95 or better and 32 MB of memory. In a step-by-step fashion, the user can specify the required properties of the fractional design. When there are more valid designs, the user can generate these successively If necessary the user can go back to diminish the requirements. The output can be copied, printed, and saved. The program generates all the information that is needed for the use and interpretation of fractional designs. A help file explains the use of the program and also the purpose, the analysis, and the interpretation of fractional designs. The program, which is written in Object Pascal, is available as freeware on www.fss.uu.nl/ms/hl/fracdes.htm.     

Sensibiliser les filles à l'orientation vers les métiers scientifiques et techniques. Évaluation d'un dispositif

Girls’s diversification of career choices seem relatively resistant to training program. One explanation of this situation is the lack or even absence of procedures for evaluating this program. The article proposes an evaluation of a training program entitled “female engineer” designed exclusively for high school girls. The objective was to encourage female students guidance in this profession. The results are mixed and are interpreted in terms of cognitive dissonance and upward social comparison. The results also show the need to develop in the same time the training program and his evaluation.     

VQone MATLAB toolbox: A graphical experiment builder for image and video quality evaluations

This article presents VQone, a graphical experiment builder, written as a MATLAB toolbox, developed for image and video quality ratings. VQone contains the main elements needed for the subjective image and video quality rating process. This includes building and conducting experiments and data analysis. All functions can be controlled through graphical user interfaces. The experiment builder includes many standardized image and video quality rating methods. Moreover, it enables the creation of new methods or modified versions from standard methods. VQone is distributed free of charge under the terms of the GNU general public license and allows code modifications to be made so that the program’s functions can be adjusted according to a user’s requirements. VQone is available for download from the project page (http://www.helsinki.fi/psychology/groups/visualcognition/).