Experiment 1. Miller (56) Capacity of STM 2-3 lessons + Home Study Cognitive – Unit 1. Purpose of experiments. To understand the purpose of Ψ To recognise the difficulty in getting exact data To criticise experimental design To design, or vary designs, yourself
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Capacity of STM
2-3 lessons + Home Study
Cognitive – Unit 1
We will do few experiments, but in detail. You need to understand other studies through this lens.
Discuss your impressions of what it felt like. Make good detailed notes of how it felt for you and others –
A good experimenter MUST EXPERIENCE THE EXPERIMENT as it affects participants, in order to understand issues in the design.
How many did you score? Are there any problems scoring?
What conclusion can you draw from these findings?
“U A E 2 0 1 1 D B S”
Do it again.
Exactly the same. All over again.
Get your clean sheet of paper ready.
Discuss your impressions of what it felt like to repeat the experiment. Make good detailed notes of how it felt for you and others –
A good experimenter must understand the effects of the experiment in detail.
How many did you score? More or less than last time? Problems scoring? Repeated mistakes?
Work in groups of 4-6.
Look at both individuals and the group’s data.
Discuss what has changed in the data, and share this with the class after summarising.
This is one of the SIMPLEST experiments you can imagine in Ψ. And yet…
Can you think of potential issues that might invalidate the data we have?
These are called METHODOLOGICAL PROBLEMS. See how your list compares to the next slide.
Order these, in your opinion, in likely effect. Define.
Debriefing is NOT removing someone’s underwear.
In effect, by having the study explained to you, you’ve been debriefed. Ppts who have not been debriefed can
ALWAYS DEBRIEF – EXPLAIN THE EXPERIMENT AFTERWARDS. And invite them to see the results.
Findings are only any acceptable if REPLICABLE.
You need to work in pairs and replicate the experiment we have conducted.
Design it slightly differently to this one. How?
How much data do you need?
How will you acquire participants?
Will the choice of participants affect the outcome?
Is your design ethically sound?
First, get your design AUTHORISED. Provide written AP, with table of M and E problems and how they will be avoided. (Share openly.)
Get permissions as necessary within school. (Pair.)
Run the experiment. (Pair.)
Write the APFC report in full detail. (Solo.)