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NEU311L Questions with Answers (100% Correct
Answers)
As described in the video, a Likert scale will be used during the class
experiment to have participants self-report how relaxed they feel. If a
participant filled out the Likert scale in the way shown in this image,
which score best approximates the score that should be given for this
response? Why? Answer: 27. The Likert scale we are using ranges from
0 (not relaxed) to 100 (extremely relaxed). Each small tick mark is 1 mm.
Each cm (indicated as a whole number on the ruler) is 10 mm. The blue
line is placed somewhere between the 2 cm and the 3 cm marker, so
the rating is somewhere between 20-30. The blue mark appears close
to the 7th tick mark past the 2, so a score of 27 is reasonable for this
data point.
tick mark on 2.7 ruler
If we altered our in-class experiment such that 10 participants were
exposed to the almond oil condition for several minutes, and later that
day the same 10 participants were exposed to the lavender oil
condition, which test should be used to see if there is a significant
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difference between the means of the control and experimental
conditions? Why? Answer: Paired samples (repeated measures) t test.
This is because a t test is used to compare two means. It is paired
samples because the 10 people in the study were each tested two
times, and so you have a pair of data points for each participant.
Which of the following statements is TRUE about
electroencephalography (EEG)? Answer: It picks up signals from
superficial layers of the brain, such as the cortex.
What does the subject who is being recorded from likely doing at
about the 4:00 min time point (the moment near the transition from
the end of the dark blue-shaded period to the light blue-shaded
period)? How do you know? Answer: They opened their eyes. The
yellow & pink band that appears around 2 minutes into the recording is
about 10 Hz and thus is in the frequency range of alpha waves. The 10
Hz band seems to fire at a rather consistent amplitude for the next two
minutes, at which time is abruptly disappears. Since it is typical for
alpha waves to be strongest when one closes their eyes, it is reasonable
to predict that the subject closed their eyes at around the 2:00 minute
mark and then opened them again around the 4:00 minute mark.
© 2025 All rights reserved
NEU311L Questions with Answers (100% Correct
Answers)
As described in the video, a Likert scale will be used during the class
experiment to have participants self-report how relaxed they feel. If a
participant filled out the Likert scale in the way shown in this image,
which score best approximates the score that should be given for this
response? Why? Answer: 27. The Likert scale we are using ranges from
0 (not relaxed) to 100 (extremely relaxed). Each small tick mark is 1 mm.
Each cm (indicated as a whole number on the ruler) is 10 mm. The blue
line is placed somewhere between the 2 cm and the 3 cm marker, so
the rating is somewhere between 20-30. The blue mark appears close
to the 7th tick mark past the 2, so a score of 27 is reasonable for this
data point.
tick mark on 2.7 ruler
If we altered our in-class experiment such that 10 participants were
exposed to the almond oil condition for several minutes, and later that
day the same 10 participants were exposed to the lavender oil
condition, which test should be used to see if there is a significant
© 2025 All rights reserved
, 2
difference between the means of the control and experimental
conditions? Why? Answer: Paired samples (repeated measures) t test.
This is because a t test is used to compare two means. It is paired
samples because the 10 people in the study were each tested two
times, and so you have a pair of data points for each participant.
Which of the following statements is TRUE about
electroencephalography (EEG)? Answer: It picks up signals from
superficial layers of the brain, such as the cortex.
What does the subject who is being recorded from likely doing at
about the 4:00 min time point (the moment near the transition from
the end of the dark blue-shaded period to the light blue-shaded
period)? How do you know? Answer: They opened their eyes. The
yellow & pink band that appears around 2 minutes into the recording is
about 10 Hz and thus is in the frequency range of alpha waves. The 10
Hz band seems to fire at a rather consistent amplitude for the next two
minutes, at which time is abruptly disappears. Since it is typical for
alpha waves to be strongest when one closes their eyes, it is reasonable
to predict that the subject closed their eyes at around the 2:00 minute
mark and then opened them again around the 4:00 minute mark.
© 2025 All rights reserved
