This is where subgroups in the population are represented proportionally in the sample.
What is a stratified sample?
This part of the neuron produces energy that fuels its activity.
What is the cell body?
This serves as a relay station for sensory stimulation.
What is the thalamus?
This hormone affects the body's metabolism.
What is thyroxin?
Information stored here is unavailable to awareness under most circumstances.
What is unconscious?
An in-depth investigation of an individual or a small group.
What is a case study?
Many axons are covered with this white, fatty substance.
What is myelin sheath?
The outer layer of the brain.
What is cerebral cortex?
This hormone helps prepare the body for pregnancy.
What is Progesterone?
This is another word for biological clock.
What is circadian rhythm?
In this method, participants are observed over a period of time often years of even decades.
What is a longitudinal study?
An excess of this hormone may contribute may contribute to the psychological disorder schizophrenia.
What is dopamine?
Messages received from the skin senses are projected to the sensory cortex in this place.
What is the parietal lobe?
The adrenal glands are situated above these organs.
What are kidneys?
This can measure brain wave patterns.
What is an EEG?
The factor that is manipulated by the researcher to determine its effect.
What is independent variable?
A column of nerves about as thick as a thumb that is protected by the bones of the spine.
What is the spinal cord?
When this area of the brain is damaged, people speak slowly and laboriously.
What is Broca's Area?
Some athletes use this to enhance their athletic ability.
What are steroids?
What is stage 4?
A study where participants don't know whether they are receiving the treatment or not.
What is a single-blind study?
This consists of the brain and the spinal cord.
What is the central nervous system?
The structure that connects the two hemispheres of the brain.
What is the corpus callosum?
An obstetrician may induce labor by injecting the woman with this.
What is oxytocin?
This is a concept we can't see, touch, or measure directly.
What is a construct?