Topical Past Paper Questions: #2- Dement and Kleitman exam 2024/2025 with 100% correct answers
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Topical Past Paper Q: #2- Dement and Kleit
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Topical Past Paper Q: #2- Dement And Kleit
name the technique used to measure brain activity (1) correct answerseeg/ electroencephalogram/ electroencephalograph (accept incorrect spelling if meaning is clear)
identify one reason for using this technique to measure brain activity (1) correct answers-identify when a person was in rem/ nrem...
Topical Past Paper Questions: #2-
Dement and Kleitman
name the technique used to measure brain activity (1) correct answerseeg/ electroencephalogram/
electroencephalograph (accept incorrect spelling if meaning is clear)
identify one reason for using this technique to measure brain activity (1) correct answers-identify when a
person was in rem/ nrem sleep/ which stage of sleep
-to analyze the brain wave patterns (of participants)
-the measure is objective
-the measure is reliable
-there are other creditworthy reasons
-1 mark each
outline one of the dreams reported when vertical eye movements was recorded (2) correct answers-
standing at the bottom of a cliff (1) operating some sort of hoist machine (1)
-climbing a set of ladders (1) looking up and down as they did (1)
-throwing basketballs at a hoop (1) then looking up at net/down to pick up another ball (1)
describe the procedure after these electrodes had been fitted (5) correct answers-they then went to bed
in a quiet (dark) room
-the wires became as a single cord/ponytail (to stop entanglement)
-the EEG was run continously through the night (at speeds of 3 or 6 mm per sec)
-at various times during the night participants were woken up via a bell
-they were woken in rem/nrem or they were woken 5 or 15 mins after rem began
-they were tested on dream recall/ask to estimate length of time in rem
-if they could recall a dream they were asked to describe it (in detail)
-they were allowed to go to sleep
-they recorded their dreams into a tape recorder
, -they were sometimes asked questions by their experimenter
-1 mark each
explain one reason why the procedure was standardized in this study (3) correct answers-it would allow
the study to be more easily replicated (1) it could be tested for reliability (1) for ex. knowing how long
they had to be in rem for before being woken up means exact replication is possible (1)
-increase internal validity (1) cause and effect are more likely to be seen (1) for ex. knowing whether
being in rem caused dreams to be reported/not (1)
-it can help to reduce extraneous/uncontrolled variables (1) we know it probably the iv of rem sleep
status (1) causing the change in dream activity/content- the dv (1)
evaluate the study in terms of two strengths and two weaknesses. at least one of your evaluation points
must be about the use of quantitative data (10) correct answers-strengths: quantiative data, laboratory
conditions, replication, standardization
describe the procedure used by dement and kleitman to collect data about dream recall (4) correct
answers-an (ordinary) doorbell sound was used to wake participants
-it was placed next to bed
-the participant had to speak into a recording device (next to the bed)
-they had to state if they had dreamed (or not)
-if they had then they had to speak about the content
-sometimes an experimenter would neter the room and ask them more questions
-the awakenings were done in rem/nrem sleep
-1 mark each
in which phase of sleep did participants recall most of their dreams (1) correct answersrem/rapid eye
movement/paradoxical sleep
an eeg (electroencephalogram) was used in this study. what does an eeg measure? (1) correct answers-
brain waves
-brain activity
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