Introducing Experimental Discipline to Call‑Out Sessions

I was recently approached by an investigator from a paranormal team operating in Lancashire, England, who asked for my opinion on a series of video‑recorded call‑out sessions. In these sessions, participants sat around a table and reported apparently “intelligent” responses to direct questions, typically in the form of audible knocks.

Similar sessions are common across paranormal investigation, and the basic format will be familiar to anyone working in the field. What stood out was not the claims themselves, but the difficulty in determining what, if anything, the footage actually demonstrated.

The Core Problem

Many call‑out sessions already use a yes/no system, often involving knocks or similar cues. On the surface, this appears to simplify interpretation in the absence of verbal communication. In practice, a significant ambiguity is often left unaddressed.

A recurring difficulty appeared across the recordings: while affirmative responses were readily identified, it was rarely clear how negative responses were being distinguished from silence, background noise, or coincidence. Without an explicit and behaviourally distinct negative response, the sessions could not meaningfully test for intentional communication – no matter how compelling individual moments might seem.

Typically, “yes” is defined in advance, while “no” is not. Silence is instead treated as an implicit negative. From an evidentiary standpoint, this approach fails.

A null result – the absence of any response – is not equivalent to an intentional “no.” Without a negative response that is behaviourally distinct from silence, it is impossible to determine whether a question has been answered, ignored, misunderstood, or not perceived at all.

If you cannot define a negative response in behavioural terms, then an affirmative response has no stable meaning either, because “yes” only exists as the opposite of a clearly defined “no.”

Once silence is allowed to carry interpretive weight that it hasn’t earned, the session becomes unfalsifiable. Every outcome appears compatible with “communication,” and the method can no longer discriminate between meaningful patterns, background noise, and simple absence.

In several sessions recorded by the Lancashire team, investigators asserted that the knocks being interpreted as responses originated from the table itself. That claim is important precisely because it is testable and falsifiable. However, the nature of available footage did not allow the source of the knocks to be independently verified, leaving the interpretation reliant entirely on testimony. This is not necessarily the fault of the team, it is merely an inevitable consequence of the limitations of video recording sessions.

Other issues also arise during such sessions, and these were sometimes apparent on occasion during the sessions I observed in this case: timing of positive responses and noise discipline during sessions.

Sometimes, knocks occurred before the questioner has finished speaking – this becomes interpreted as an enthusiastic “yes” response. Other times considerable time passes before a knock is heard. On either occasion, it is unclear from an evidentiary perspective whether the sounds relate to the questions asked, or are just background noise being assigned meaning by wishful thinking team members. It is important to note however that the team have claimed that knocks only occurred during active questioning sessions, suggesting a relatively quiet baseline for the location.

On noise discipline, there is a tendency among teams during such sessions to talk excitedly and comment on responses, adding interpretations to sounds being heard, etc. This can make other noises difficult to hear and again this can lead to not just false positives, but also false negatives – where potential responses (or spurious background noises) go unnoticed because they were being talked over.

Before asking who might be communicating, we must first define how a response would be recognised.

Scope and Intent

Within formal paranormal research, loosely structured call-out sessions are generally regarded as low-credibility tools. This is not because attempts at communication are inherently unreasonable – if the hypothesis is that an intelligent presence exists, communication is a necessary avenue of testing. Rather, the problem lies in how these sessions are typically conducted: ambiguous timing, uncontrolled variables, and flexible interpretation make meaningful evaluation difficult.

While some investigators advocate abandoning call-out sessions entirely on the grounds that they are unscientific, this position is not universally persuasive. Many such sessions have produced observations that, at minimum, warrant closer examination. As with any claim, when an event of interest is reported, the responsible next step is to attempt to recreate the conditions under which it occurred, under more controlled circumstances.

This article proposes a structured framework for running call‑out sessions that clarifies what counts as a response, how silence is handled, and how claims about the physical origin of sounds can be tested directly. The aim is not to replace traditional methods, but to introduce a level of experimental discipline that makes the results interpretable and reviewable. The protocol proposed below does not replace the traditional call-out format. Its purpose is to introduce structure and discipline so that results can be interpreted more consistently and reproduced more reliably.

It is also not the intention here to provide an exhaustive catalogue of possible mundane causes for reported sounds. For the purposes of this experimental process, it is assumed that such explanations have already been explored as far as practicable, or will be addressed separately. The scope of enquiry is necessarily narrow, focusing specifically on whether an intelligible and intentional pattern of responses can be demonstrated under controlled conditions.

Terminology

The term Source is used throughout this article to describe the hypothetical agent of communication.

This choice is intentional. Words like “spirit,” “entity,” or “presence” carry assumptions about identity, origin, and intention that cannot be justified at the outset. Using a neutral term prevents interpretive bias and keeps the focus on observable behaviour rather than belief or speculation.

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Hypothesis

This protocol tests the following hypothesis:

An intelligent Source is present and is both able and willing to communicate intentionally under defined conditions.

This involves two measurable components:

• Ability: understanding simple rules and responding in a controlled, discriminating manner
• Intent: choosing to cooperate and respond when given a clear opportunity

Both must be demonstrated consistently. Evidence for one without the other is insufficient to support the hypothesis.

What This Method Tests – and What It Does Not

This method tests:

• The Source’s ability to follow simple behavioural rules
• Timing discrimination
• Correction following feedback
• Consistency across questions and sessions

It does not test:

• Identity
• Cause or mechanism (mundane or otherwise)
• Belief confirmation
• Activity generation

Allowing the Experiment to Fail

Importantly, as with any scientific process: a lack of responses does not undermine the method. It does, however, necessitate re-evaluation of the original assumption.

A hypothesis that cannot fail is not a hypothesis. If controlled, repeatable sessions produce no evidence of intentional communication, the appropriate conclusion is not that the method was too strict, but that the assumption being tested may be incorrect or incomplete.

Negative or null results are not wasted sessions. They are the foundation of honest investigation.

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Method Overview

The protocol consists of five phases:

1. Team briefing and control of human variables
2. Location briefing and response definitions
3. Structured questioning
4. Event classification and timing correction
5. Interpretation and review

Each phase is designed to reduce ambiguity and preserve interpretability.

Equipment and Documentation

The purpose of equipment in this protocol is not to detect phenomena directly but to create a reviewable record.

Cameras

• One or more cameras must record the session
• All participants’ hands and feet must remain visible
• Multiple angles may be required
• Infrared or night‑vision may be used where necessary

Audio Recording

• High‑quality audio recording is essential
• Multiple devices enable cross‑referencing and localisation
• Audio should be time‑aligned with video

Contact Microphones and Vibration Monitoring

Where knocks are claimed to originate from a specific surface, contact microphones should be mounted directly to that surface. Where appropriate, vibration monitoring of adjacent structures may also be used. For the purpose of this write-up, a table will be used as an example of a test surface as it aligns with the claims of the original case study.

This allows investigators to determine whether audible knocks were coupled to the table or originated elsewhere. Contact microphones can also capture faint knocks that may be missed in real time.

Vibration monitoring equipment that produces long‑duration visual indicators (e.g., lights that remain illuminated for several seconds after a triggering event) is discouraged, as it obscures fine timing and masks any events that occur in quick succession. Timestamped logging of individual events is preferable.

A dedicated camera monitoring the underside of the table further assists in ruling out inadvertent or environmental contact. A 360 degree camera placed under the centre of the table would be ideal.

No single device is treated as evidential in isolation. If the above setup fails to confirm the reports of where the knocks originate from, then separate sessions must be conducted to explore the actual location of the knocking.

Phase 1 – Team Briefing and Ground Rules

A single Session Lead conducts all questioning.

Participants must:

• Remain seated
• Keep hands and feet visible
• Maintain strict noise discipline
• Avoid movement during response windows

Participants must not:

• Prompt, plead or otherwise attempt to provoke responses
• Comment on sounds during the session
• React verbally or physically to knocks
• Report sensations during active questioning
• Suggest mid‑session changes

Any sensations or observations are discussed and recorded only after the session.

All individuals in the building must be accounted for, and no one may enter, exit, or move between rooms during active questioning.

It is essential to the integrity of the experiment that all participants are monitored for signs of deliberate tampering or fakery.

Phase 2 – Location Briefing and Response Rules

Before questioning begins, the Session Lead states:

• No assumption is being made that anything is present
• No response is expected
• Only predefined responses will be considered meaningful

Response Definitions

Affirmative and negative responses must be predefined, explicit, behaviourally distinct from each other and from the baseline. A common scheme uses:

• One knock = yes
• Two knocks = no

It should be clearly stated that only clear, purposeful responses are considered. Ambiguous or partial sounds are recorded as part of the baseline and not to treated as responses. It should also be made clear at the start of the session that silence will not be treated as a response.

Response Window

A visible cue (e.g., raised hand, switched light) marks the opening and closing of the response window. The window remains open for a fixed period (up to five seconds). Only events occurring fully within this window are considered.

If a reviewer cannot identify the response window, it is not valid.

Phase 3 – The Questioning Method

Questions must be simple, clear, and answerable with “yes” or “no.”

Each question follows this sequence:

1. Session Lead asks the question
2. Brief pause to allow stillness
3. Visible signal opens the response window
4. Window remains open for the fixed duration
5. Signal ends and the window is closed

Participants remain silent and still throughout the window.

Phase 4 – Event Classification and Timing Correction

All sounds are time‑stamped and classified:

• In‑window events: may be considered possible responses
• Out‑of‑window events: recorded but not treated as responses

If an out‑of‑window sound occurs, the Session Lead states this explicitly and may repeat the question once to allow timing correction.

Borderline cases (e.g., sounds occurring during the opening or closing signal) may also trigger a single repeat. After one repeat, the question is closed.

Silence is recorded as a null response.

Phase 5 – Interpretation and Review

After the session ends, all observations – recordings, background noise patterns, and participant reports – are reviewed together.

Particular attention would be given to audio captured by contact microphone setups, which may detect potential responses or spurious noises that were inaudible during the live session. These sounds could help strengthen (or indeed refute) claims of paranormal origin, depending on their pattern relative to questions being asked.

Out‑of‑window sounds help establish the background profile of the location. No single sound is treated as meaningful in isolation.

Evidence supporting the hypothesis requires:

• Correct timing
• Appropriate variation in answers
• Correction after feedback
• Repetition across questions or sessions

Quiet sessions are valid outcomes and will be recorded as datapoints in the wider trend.

Interpreting Outcomes

Conclusions from the session(s) can be defined into three broad categories:

• Ability with intent: consistent timing, appropriate variation, and correction after feedback. Responses are consistent and non-contradictory.
• Ability without intent: limited or inconsistent engagement.
• No demonstrated ability: behaviour indistinguishable from noise or non‑correcting.

Only disciplined, repeated results justify further investigation. It is important to note that this is not a “one and done” experiment. Hauntings are defined as a pattern of unexplained activity, and a single session is only a single datapoint in a wider trend. Repeated sessions following this protocol would be necessary to establish a pattern.

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Frequently Asked Questions

“Isn’t this too strict? Spirits don’t follow rules.”

The protocol is strict for the same reason any controlled test is strict: to minimise ambiguity. A Source that cannot recognise simple timing boundaries or adjust after feedback may exist, but it cannot be said to be communicating intentionally or intelligently under these conditions.

If the Source is indeed intelligent and wishes to communicate – and to be understood – it is not an unreasonable proposition for it to follow this simple protocol.

“What if the Source doesn’t want to answer?”

If a Source is assumed to be present but is unwilling to respond, then ambiguous noises cannot reasonably be interpreted as intentional communication. In such cases, sounds produced during the session must be treated as non‑paranormal, as the method no longer provides a way to distinguish intention from coincidence. Under these conditions, call‑out sessions cease to function as investigative tools.

“Aren’t you throwing away interesting data?”

All data are recorded. The protocol simply distinguishes between observation and interpretation. Ambiguous events outside the response window are not treated as answers but still help characterise the environment.

“What if the response was mistimed?”

Each question may be repeated once to allow correction. Beyond that, relaxing the timing undermines the test itself.

“Why not change the rules mid‑session?”

Changing rules in response to events destroys the baseline, making interpretation impossible. New ideas are incorporated only into future, deliberately planned sessions.

“Isn’t this just scepticism in disguise?”

It is scepticism in the proper sense: a method that is agnostic to outcome and open to whatever result occurs. A protocol that only ever confirms belief is not open‑minded – it is insulated.

“Why exclude reactive people?”

Not everyone is suited to the behavioural discipline required during active questioning. This is not about belief or seriousness; it is about preserving clean, interpretable conditions.

“What if nothing happens?”

A silent session under controlled conditions is not a failure. It is a result – one that directly informs future refinements to the working hypothesis.