Chapter 1 & 2: Psychology as a Science/Neuroscience Flashcards
A review panel established by a publicly funded research institution to evaluate all proposed research by that institution.
Institutional Review Board (IRB)
- Obtained informed consent
- Minimize harm to participants
- Avoid deception when possible
- Voluntary withdrawal from research
- Protect the confidentiality of participants
Ethical considerations evaluated by the IRB (Insitutional Review Board)
When researchers observe and describe behaviors without investigating the relationship between specific variables
- can include observation in natural habitat or a laboratory, case studies or conducting surveys
- can have a narrow or broad focus
Descriptive study
Study of one individual or a few individuals in depth.
-Use real-life observations, interviews or tests to obtain information. (i.e. brain damage-not possible or ethical to obtain any other way).
Case Study
A study that allows researchers to measure the degree to which two variables are related.
- Includes a Variable or characteristic that can vary, such as age, weight, or height.
- variables are not manipulated
- observes whether a relationship exists between the variables
Correlational design
A study that enables researchers to determine causality by manipulation of one or more independent variables and observing the effect on some outcome.
- Includes an independent variable (manipulated or changes) and a dependent variable (the variable being measured).
- random assignment (experimental group=independent variable; control group=no treatment/no effect)
- single blind-participants don’t know which group they have been assigned
- double blind-neither participants or experimenters know who is in which group.
Experimental Design (or study)
A variable that is manipulated or changed in an experiment
Independent Variable
A variable that is being measured to determine the impact of changes in the other variable;
Dependent Variable
A variable other than the independent variable that could have an impact on the dependent variable; variables the researcher failed to control, or eliminate, damanging the internal validity of an experiment; aka third-degree variable.
Confounding Variable
provide participants with a verbal description of the true nature and purpose of a study after the study occurs.
Debriefing
The consistency of a measure.
Reliability
Accuracy of a measure; meaning that the test is accurately measuring the construct it is designed to measure.
Validity
Explanations and interpretations of the facts; a principle that has been formed as an attempt to explain things that have already been substantiated by data.
Theory
A testable prediction about new facts, based on existing theories; an assumption, something proposed for the sake of argument so that it can be tested to see if it might be true.
Hypothesis
The research participants do not know whether they have been assigned to the experimental or control group. When they don’t know, their expectations can no longer bias the results.
Single-blind experiments
Both the participants and the researchers do not know which participants are receiving the actual treatment and which are receiving a placebo treatment. Most effective in reducing bias from the participant or the researcher.
Double-blind experiment
The process by which participants in an experiment are randomly placed into experimental and control groups.
Random assignment
A technique in which the participants in a survey are chosen randomly in an attempt to get an accurate representation of a population.
Random Sampling
To be truly random, every member of the population of interest has to have an equal chance of being included in the study; and so that a sample is representative of the general population.
Relationship between a population and a random sampling. Why use random sampling?
Includes the brain and spinal cord
Central Nervous System
Branch of the nervous system that is external to the CNS, or external to the brain and spinal cord.
Peripheral Nervous System (PNS)
Divided into the somatic nervous system and autonomic nervous system.
Two main divisions of the peripheral nervous system (PNS)
Receives stimuli from the outside world, coordinates our movements, and performs other tasks that we control consciously; part of the peripheral nervous system.
Somatic Nervous System
Responsible for the involuntary functions of the internal organs of our bodies and consists of the sympathetic nervous system and the parasympathetic nervous system; is part of the peripheral nervous system.
Autonomic nervous system
Sympathetic nervous system and the parasympathetic nervous system.
Parts of the Autonomic System