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Psychology 105 Exam 1 WSU With Complete Solutions
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Psychology 105 Exam 1 WSU With Complete Solutions
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Psychology 105 Exam 1 WSU With CompleteSolutions
The main elements of experimental research Answer: -Independent Variable: Manipulated variable
under the researchers control
-Random Assignment: Researchers use this to place participants in different conditions
Control Conditions: Researchers can create one or more controlled conditions.
between-subjects design Answer: A research design in which different groups of participants are
randomly assigned to experimental conditions or to control conditions.
within-subjects design Answer: participants are exposed to all levels of the independent variable.
double-blind design Answer: research design in which neither the experimenter nor the participants
know who is in the experimental group and who is in the control group.
Placebo Answer: A harmless pill, medicine, or procedure prescribed more for the psychological
benefit to the patient than for any physiological effect.
Why is a large sample size important? Answer: Gets information from a wide range of people and is
more trustworthy than a small sample size.
Why is random assignment important? Answer: Because it is used to control for differences
between groups
Why is a manipulated variable important? Answer: Because scientists make changes in experiments
to see if those changes will cause an effect in something they observe.
, Wilhelm Wundt Answer: -Structuralist
-Known as "father of psychology"
-Established the first psychology laboratory in Germany, 1879.
Separated psychology from philosophy and deeply analyzed thoughts and sensations.
Central Nervous System (CNS) Answer: Consists of the brain and spinal cord.
Paripheral Nervous System (PNS) Answer: - The PNS consists mainly of nerves, which are enclosed
bundles of the long fibers or axons, that connect the CNS to every other part of the body.
- Divided into two major parts: the somatic nervous system and the autonomic nervous system.
sympathetic nervous system Answer: Fight or flight
parasympathetic nervous system Answer: the division of the autonomic nervous system that calms
the body, conserving its energy. Rest and digest.
Polygraph examination Answer: measures heart rate, blood pressure, breathing, galvanic skin
response, and respiration in response to questions and see if the person is lying or not.
How is info transferred from one neuron to the next? Answer: Neurons, or nerve cells that carry
nerve impulses, are made up of the cell body, the axon, and several dendrites. Signals move across the
synapse, the place where the axon of one neuron meets the dendrite of another, using chemicals called
neurotransmitters.
Thalamus Answer: the brain's sensory control center, located on top of the brain-stem; it directs
messages to the sensory receiving areas in the cortex and transmits replies to the cerebellum and
medulla
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