Ephraim I. Schechter Sources:
Ephraim I. Schechter is a parapsychologist known for his methodological contributions to ESP research, particularly his work on automated testing systems and the ganzfeld paradigm. His research addressed fundamental questions about the replicability of psi effects and the role of experimental controls in anomalous cognition studies.
Key findings
- Nonintentional ESP effects were documented in a review and replication study, suggesting psi may occur outside conscious intention or awareness.1
- Automated ganzfeld testing systems produced significant psi-ganzfeld results comparable to earlier manual protocols, with effect sizes consistent across multiple experiments.2
- First-time ganzfeld participants showed measurable psi performance, with specific demographic and psychological factors predicting initial success rates.3
- Computer-based psi games revealed differential performance patterns across task types, informing the design of subsequent automated protocols.4
- Hypnotic induction conditions in psi experiments required careful control-condition design to establish replicability and rule out demand artifacts.5
- Distraction from the psi task in psychokinesis games produced measurable effects, suggesting that divided attention may modulate psi performance.6
Overview
Ephraim I. Schechter emerged as a significant figure in parapsychology during the 1970s and 1980s, a period marked by growing emphasis on experimental rigor and the adoption of computerized testing methods. His work bridged two critical methodological transitions in the field: the move from manual to automated protocols, and the systematic investigation of factors affecting replicability in ESP experiments. Schechter’s contributions were particularly valuable because they addressed not only whether psi effects could be detected, but under what conditions they appeared most reliably and what experimental design choices might enhance or obscure them.
Much of Schechter’s research was conducted in collaboration with leading parapsychologists of the era, including Charles Honorton, Rex Stanford, and others working within the ganzfeld and computer-game paradigms. His work exemplified the field’s growing sophistication in applying control conditions, automated randomization, and statistical meta-analysis to anomalous-cognition research. Rather than pursuing a single theoretical framework, Schechter’s approach was fundamentally empirical: he designed experiments to test specific hypotheses about the conditions under which psi effects manifest, and he paid careful attention to the methodological details that might distinguish genuine effects from artifacts.
Research
Nonintentional ESP and the role of awareness
One of Schechter’s early contributions was a systematic review and replication of nonintentional ESP, psi effects that occur without the subject’s conscious intention or awareness that a psi task is occurring. In his 1977 review, Schechter examined the existing literature on this phenomenon and conducted replications to test whether such effects were robust.1 This work raised important questions about the nature of psi: if ESP could occur outside conscious intention, what did that imply about the mechanisms underlying anomalous cognition? Could psi operate as an automatic or unconscious process, independent of the subject’s deliberate effort or attention?
Following this initial work, Schechter and Stanford collaborated on a critical examination of the interpretation of nonintentional ESP evidence.7 Rather than simply accepting reported nonintentional effects at face value, they scrutinized the logical and statistical basis for claims that psi had occurred outside awareness. This critical stance, asking not just whether an effect was reported, but whether the evidence actually supported the interpretation being offered, became characteristic of Schechter’s methodological approach.
Computer-based psi games and automated testing
During the 1980s, Schechter participated in a series of studies using computer-based psi games as an alternative to traditional ganzfeld and free-response protocols. In collaboration with Berger and Honorton, he contributed to a preliminary review of performance across three different computer psi games.4 These games represented an important methodological innovation: they allowed for precise control of stimulus presentation, automated randomization, and immediate feedback to subjects, while maintaining the experimental flexibility to vary task parameters and measure performance across different conditions.
One specific investigation examined the role of distraction in psychokinesis tasks. Schechter, Barker, and Varvoglis conducted a preliminary study with a PK game designed to test whether distraction from the psi task itself might modulate performance.6 This experiment reflected a broader theoretical interest: understanding not just whether psi effects occurred, but how attentional and cognitive factors influenced their magnitude and reliability. The ability to systematically manipulate task parameters through computerized protocols made such investigations feasible in ways that earlier manual methods had not permitted.
The ganzfeld paradigm and automated systems
Schechter’s most sustained research contribution came through his involvement in the development and refinement of automated ganzfeld testing systems. The ganzfeld, a sensory-deprivation protocol in which a subject attempts to receive information about a randomly selected target image while in a state of mild sensory isolation, had become the dominant ESP paradigm in parapsychology by the 1980s. However, manual ganzfeld experiments were labor-intensive, and concerns about experimenter bias and procedural inconsistency had motivated the search for automated alternatives.
In a landmark 1987 publication, Honorton and Schechter presented a model for initial ganzfeld success using an automated testing system.8 This work demonstrated that automated protocols could produce significant psi effects while simultaneously reducing potential sources of bias. The automated system allowed for precise control of target selection, randomization, and the timing of subject responses, while also enabling the collection of detailed performance data across many trials.
Building on this foundation, Schechter contributed to a comprehensive update of automated ganzfeld research. In a 1990 publication, Honorton, Berger, Varvoglis, Quant, Derr, Hansen, Schechter, and Ferrari reported results from a series of automated ganzfeld experiments and compared their findings with a meta-analysis of earlier manual ganzfeld studies.2 This comparison was methodologically significant: it allowed researchers to ask whether the shift to automation had altered the magnitude or consistency of psi effects. The results suggested that automated protocols produced effect sizes comparable to those reported in earlier manual studies, lending credibility to the new methodology while also raising questions about what aspects of the ganzfeld procedure were essential to psi performance.
In the same year, Varvoglis, Quant, Derr, Schechter, and Ferrari published a related study examining psi communication in the ganzfeld using the automated testing system and comparing results with a meta-analysis of earlier work.9 This parallel investigation reinforced the findings from the Honorton et al. study and extended the analysis to include additional performance metrics and subject variables.
First-time participants and predictors of initial success
A particularly valuable contribution came from Schechter’s collaboration with Honorton, Varvoglis, and Berger on an exploration of factors affecting initial ganzfeld performance in first-time participants.3 This study addressed a practical and theoretical question: what characteristics predicted whether a naive subject would show psi effects on their first ganzfeld trial? By systematically examining demographic variables, personality measures, and other individual differences, the researchers aimed to identify factors that might enhance or inhibit psi performance. Such information was valuable both for understanding the psychology of psi and for optimizing experimental design to maximize the likelihood of detecting effects.
Hypnotic induction and experimental controls
Schechter also made important contributions to the methodological literature on hypnotic induction in psi experiments. In a 1984 paper, he illustrated an approach to evaluating replicability by comparing hypnotic induction conditions with appropriate control conditions.5 This work exemplified a broader principle: that claims about the effects of any experimental manipulation (whether hypnosis, meditation, feedback, or any other intervention) required careful control-condition design. Without proper controls, it was impossible to distinguish genuine effects of the manipulation from demand artifacts, expectancy effects, or other confounds. Schechter’s methodological emphasis on rigorous control design reflected the field’s growing sophistication in addressing these challenges.
Influence and reception
Schechter’s contributions to parapsychology were recognized through his participation in major collaborative research programs and his publications in the field’s leading journals. His work on automated ganzfeld systems was particularly influential, as it helped establish the credibility of computerized protocols at a time when the field was transitioning from manual to automated methods. By demonstrating that automated systems could produce results comparable to earlier manual procedures, Schechter and his collaborators provided empirical support for a methodological shift that would dominate ganzfeld research for decades to come.
His emphasis on careful experimental design, appropriate control conditions, and systematic investigation of factors affecting replicability reflected broader trends in parapsychology toward greater methodological rigor. Rather than simply reporting positive results, Schechter’s work engaged with the harder questions: Under what conditions do psi effects appear? What experimental design choices enhance or obscure them? How can we distinguish genuine effects from artifacts? These questions, while less dramatic than claims of psi success, were essential to building a credible empirical foundation for the field.
The collaborative nature of much of Schechter’s work (particularly his partnerships with Honorton, Varvoglis, and others) also reflected the field’s growing emphasis on multi-laboratory replication and meta-analytic synthesis. By contributing to large-scale collaborative projects that combined data across multiple experiments and sites, Schechter helped advance the field’s capacity to address questions about the robustness and generalizability of psi effects.
References
- Schechter, E. I. (1977). Nonintentional ESP: A review and replication. Journal of the American Society for Psychical Research, 71, 337–374. [citation pending verification] ↩︎
- Honorton, C., Berger, R. E., Varvoglis, M. P., Quant, M., Derr, P., Hansen, G. P., Schechter, E., & Ferrari, D. C. (1990). Psi ganzfeld experiments using an automated testing system: An update and comparison with a meta-analysis of earlier studies. Journal of Parapsychology, 54, 25–32. ↩︎
- Honorton, C., Varvoglis, M. P., Berger, R. E., & Schechter, E. I. (1986). First-timers: An exploration of factors affecting initial psi ganzfeld performance. Research in Parapsychology 1985, 1–3. ↩︎
- Berger, R. E., Schechter, E. I., & Honorton, C. (1986). A preliminary review of performance across three computer psi games. Research in Parapsychology 1985, 1–3. ↩︎
- Schechter, E. I. (1984). Hypnotic induction vs. control conditions: Illustrating an approach to the evaluation of replicability in parapsychological data. Journal of the American Society for Psychical Research, 78, 1-27. [citation pending verification] ↩︎
- Schechter, E. I., Barker, P., & Varvoglis, M. P. (1983). A preliminary study with a PK game involving distraction from the psi task. [citation incomplete] ↩︎
- Schechter, E. I., & Stanford, R. G. (1978). On the interpretation of some reported evidence for nonintentional ESP. Journal of the American Society for Psychical Research, 72, 289–291. [citation pending verification] ↩︎
- Honorton, C., & Schechter, E. I. (1987). Ganzfeld target retrieval with an automated testing system: A model for initial ganzfeld success. Scarecrow. [citation pending verification] ↩︎
- Harvoglis, M. P., Quant, M., Derr, P., Schechter, E. I., & Ferrari, D. C. (1990). Psi communication in the ganzfeld: Experiments with an automated testing system and a comparison with a meta-analysis of earlier studies. Journal of Parapsychology, 54(2), 99–139. ↩︎