More on millisecond timing and tachistoscope applications for the IBM PC. Description of a BASIC program for data collection using a portable microcomputer. Behavior Research Methods, Instruments, & Computers, 15, 616. BASIC programs for observational research using the TRS-80 Model 100 portable and Model 4 computers. Behavior Research Methods, Instruments, & Computers, 19, 47–48.ĭeni, R., Szuarto, K., Eisler, A., & Fantauzzo, C. A software-based millisecond timer for the CP/M operating system. Bulletin of the Entomological Society of America, 33, 209.Ĭoyne, A. Observational study of behavior: Sampling methods. The results can be exported to spreadsheet and statistical programs.Īltmann, J. Output can be generated in the form of sorted event sequence files, text report files, and tabular ASCII files. For analysis of concurrence, one can select the number of nesting levels and the order of nesting. The Observer calculates frequency of occurrence and duration for classes of events, individual events, or combinations of events. During data analysis, the user can select the level of analysis and the type of output file. User comments as well as independent variables can be stored together with the observational data. The program also includes on-line error correction. An on-line electronic notepad permits notes to be made during an observation session. The program allows grouping of events in classes and distinction between mutually exclusive versus nonexclusive events and duration events versus frequency events. Keys can be designated as events, and modifiers can be used to indicate the limits of an event. Event-recording configurations can be tailored to many different experimental designs. Observational data from either type of computer can be analyzed by the program. The configuration can be either used directly for event recording on the PC or passed on to a program generator that creates a program to collect data on a hand-held computer. The user specifies options through menus. In addition, The Observer can generate dedicated event-recording programs for several types of non-IBM-compatible portable and hand-held computers and transfer files between the PC and such computers. It allows any IBM-type personal computer to serve as an event recorder. The Observer is a general-purpose software package for event recording and data analysis in behavioral research.

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