I'd put the temp drop down to being that you were aiming at the floor and then at a wall? I'd imagine the floor was colder, because of it being the floor?
Also, the woman holding the camera is difficult to understand as I'm guessing she is really close to the mic on the camera.
Maybe better if you structured the investigation as it appears really random and just a group of people standing around aiming thermometers as various parts of the church - there's no process. Everyone is just interested in filming each other and having a chat.
There is zero methodology.
If you are just up for putting stuff on the net as a scary night that's fine but if you are trying to be serious then the group needs to sit down and figure out what it's doing.
The ghost club technical officer had this too say in the spring journal
This investigation report of Tilbury Fort
highlights the importance of robust
methodology. The Ghost Club is
currently striving to update its procedure of
investigations of alleged haunted locations in
line with a twenty-first-century approach,
which is not necessarily an easy thing to do.
Few of us have scientific backgrounds or the
funding for necessary equipment that would
enhance the effectiveness of an
investigation. Nor do we have (as far as I am
aware) absolute psychic powers that show us
detailed events of the past.
Nevertheless, if we are to improve, we
must continually and comprehensively review
investigation methodology so that we are
able to differentiate ourselves from both the
TV ghost hunting shows and the many
commercial ghost hunting event nights
available. With that in mind, I think it is worth
emphasising the following points:
Robust methodology must always be
put in place when planning an
investigation.
The scientific method is essential and
should be applied in the conduct of the
entire investigation, not just the use of
equipment to collect data.
Beginning the investigation with an
accurate time check to the nearest
second!