LSU PSYCH 2000 EXAM 1 (TUCKER)
QUESTIONS WITH ALL CORRECT
ANSWERS – UPDATED!!
Trichromatic Theory - Answer-Primary Colors: Red, Blue, Green
Evidence: Color Blindness
Opponent Process Theory - Answer-Primary Colors: Red-Green, Blue-Yellow
Evidence: Afterimages
Physical Dimension - Answer-Amplitude
Frequency
Complexity
Quiet and High Pitch - Answer-Low Amplitude, High Frequency
Quiet and Deeper Pitch - Answer-Low Amplitude, Low Frequency
Loud and High Pitch - Answer-High Amplitude, High Frequency
Loud and Deeper Pitch - Answer-High Amplitude, Low Frequency
Absolute Threshold - Answer-The smallest amount to detect a stimulus
Just Noticeable Difference - Answer-Detecting the difference between two stimuli
Absolute Threshold (EX) - Answer-Turning a radio up that starts at 0... going one
increment at a time. The absolute threshold is when you FIRST are able to hear it.
Just noticeable difference (EX) - Answer-Changing a radio from 10 to 11 might be hard
to detect. But changing it from 10 to 13 might be an obvious change.
Descriptive - Answer-Observation/Description of a variable
Case study
Naturalistic observation
Laboratory observation
Survey
, Experimental - Answer-The manipulation of variables to determine causality
True Experiment
Quasi-Experiment
Independent Variable - Answer-The variable being manipulated
Dependent Variable - Answer-The variable being measured
Control Group - Answer-The subject NOT receiving the independent variable (may
receive a placebo)
Experimental Group - Answer-The subjects receiving the independent variable
Correlations DO - Answer-Depict relationships between two variables
Correlations DON't - Answer-Prove causation. It doesn't imply that one variable causes
the other. (ex: weed use and GPA vary inversely. But this doesn't necessarily mean that
smoking weed causes a poor GPA. It could mean that a poor GPA causes weed use.)
Reuptake Process - Answer-When a lot of neurotransmitters accumulate at the synapse
and then they are absorbed back into synaptic vesicles
Resting Potential - Answer-70mv, the neuron is not firing, prior to sodium entering the
neuron
Action Potential - Answer-happens when the neuron becomes (b/c sodium is entering)
more positive and threshold is reached. The reversal of the electrical charge within the
axon. All or nothing.
Psychology? - Answer-The scientific study of behavior and mental processes.
Scientific - Answer-Can be understood, studied, quantified, etc
Behavior - Answer-Any outward action that is directly observable
Mental Processes - Answer-Perceptions, thoughts, feelings (stuff going on in your head)
Considered latent constructs
Cannot be observed or measured directly
Wilheim Wundt - Answer-"Father of Psychology"
First attempt to bring objectivity/measurement in psychology
Founded the 1st experimental psychology laboratory (1879)
Edward Titchener - Answer-Student of Wundt
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