Final Chapters 1,2,3, Flashcards
Critical thinking
Thinking that does not blindly accept arguments and conclusions. Rather it examines assumptions, discerns hidden values, evaluates evidence, and assesses conclusions.
Hindsight bias
The tendency to believe that after learning an outcome that one would have foreseen it
Theory
Am explanation using an integrated set of principles that organizes observations and predicts behaviors or events,
Hypothesis
A testable prediction often implied by a theory
Operational definition
A statement of the operations used to define research variables.
Replication
Repeating the essence of a research study, usually with different in participants in different situations to see whether the basic finding extends to other participants and circumstances.
Case study
Observation technique in which one person is studied in depth in the hole of revealing universal principles
Survey
A technique for ascertaining the self reported attitudes or behaviors of a particular group usually by questioning a representative, random sample of the group.
Population
All cases in a group being studied, from which samples may be drawn.
Random sample
A sample that fairly represents a population because each members has and equal chance of inclusion
Naturalistic observation
Observing and recording behavior in naturally occurring situations without trying to manipulate or control the situation
Correlation
A measure of the extent to which two factors vary together, and this how well either factor predicts the other
Correlation coefficient
A statistical index of the relationship between two things from -1 to +1
Scatter plots
A graphed cluster of dots, each of which represents the values of two variables. The slope of the points suggests the direction of the relationship between the two variables. The amount of scatter suggests the strength of the correlation. (Little scatter indicates high correlation.)
Experiment
A research method in which an investigator manipulates one or more factors to observe the effect on some behavior or mental process.
Random assignment
Assigning participants to experimental and control groups by chance, this minimizing pre-existing differences between those assigned to the different groups.
Double blind
An experimental procedure in which both the research participants have received the treatment or a placebo. (Drug evaluation)
Placebo effect
Experimental results caused by expectations alone; any effect on behavior caused by the administration of an inherit substance or condition, which the recipient assumes is an active agent.
Experimental group
In an experiment, the group that is exposed to the treatment, that is, to one version of the independent variable
Control group
In an experiment, the group that is not exposed to treatment.
Serves as comparison.
Independent variable
The experimental factor that is manipulated
Variable being studied
Dependent variable
The outcome factor
Mode
Most frequently occurring score in distribution
Mean
The arithmetic average of a distribution
Median
The middle score in a distribution
Range
The difference between the highest and lowest scores in a distribution
Standard deviation
A computes measure of how much scores vary around the mean score
Normal curve
A symmetrical bell shaped curve that describes the distribution of data
Statistical significance
A statistical statement of how likely or is that an obtained result occurred by chance
Culture
The enduring behaviors, ideas, attitudes and traditions shared by a group of people and transmitted from on generation to the next.
Biological psychology
A branch of psychology concerned with the links between biology and behavior
Neuron
A nerve cell
Sensory neurons
Neurons that carry incoming information from the sensory receptors to the brain and spinal cord
Motor neurons
Neurons that carry outgoing information from the brain and spinal cord to the muscle and glands
Interneurons
Neurons within the Brain and spinal cord that communicate internally and intervene between the sensory inputs and motor outputs
Dendrite
Bushy branching extensions of a neuron that receive messages and conduct impulses toward cell body
Axon
Extensions of a neuron, ending in branching terminal fibers, through which messages pass to other neurons or to muscles or glands