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AP Psych Ch 1 Vocab
Psychology Eighth Edition by David G. Myers
Term | Definition |
---|---|
Hindsight Bias | The idea that we knew it all along |
Overconfidence | a person’s belief that they are smarter than they really are and that they can do things more quickly than they really can. |
Case Study | when a psychologist studies one person in depth in hope of revealing universal principles |
Survey | technique for discovering the attitudes and behaviors of people based on questioning a random sample of people |
Random Sample | a sample that represents a population because each person has an equal chance. |
False Consensus Effect | The tendency to overestimate the extent to which others share our beliefs and behaviors |
Naturalistic Observation | Observing and recording behavior in naturally occurring situations without trying to manipulate or control the situation. |
Correlation Coefficient | an expression that ranges from -1 to +1 and expresses the relationship of two sets of data |
Scatterplots | a graph of dots that represents the values of two variables |
Perfect Positive | of the two variables, both went up at equal increments |
Perfect Negative | of the two variables, one went up while the other went down in perfect order |
No Relationship | the two variables have no relationship and do not effect each other |
Illusory Correlations | the belief that there is a relationship when there is not. |
Hypothesis | the question that is being asked and will be answered through the experiment |
Operational Definition | the definition of vague terms in an experiment (how religious someone is) |
Random Sample | a sample that fairly represents a population because each member has an equal chance |
Random Assignment | assigning participants in an experiment to be in the control group or in the experimental group without them knowing, and in a random fashion. |
Independent Variable | the experimental factor that is being manipulated |
Dependent Variable | outcome of the manipulated factor |
Experimental Condition | the condition of an experiment that exposes the participants to the treatment |
Control Group | The group of people that do not partake in the experiment and create a baseline for other people |
Double-Blind Procedure | when both the research participants and the research staff don’t know who is in the experimental group and who is in the control group. |
Placebo | any effect on behavior caused by the administration of an inert substance or condition which is presumed to be an active agent. |
Hawthorne Effect | the concept that some people will work harder than others in an experiment |
Replication | the ability of an experiment to be done again and have the same results |
Measures of Central Tendency | Mean, median, and mode |
Measures of Variation | Range, Standard Deviation |
Standard Deviation | the measure of how scores vary from the mean. The closer to zero, the greater chance that the data is closer to the average. |
Distributions | showing in what ranges certain data falls |
Histogram | a bar type graph that explains how many pieces of data are in any given range. |
Normal Curve | also known as a bell curve in which 68% is normal, 95% is above that, and most people are in the 99.7% data range |
Skew | the data having a tail to the left or right which is caused by outliers |
Outlier | any piece of data that is outside the data range and falsely affects the mesure of central tendency and variation |
Statistical Significance | statement of how likely that an event occurred by chance |
Replication | the experiment can be done again |
P-Value | shows statistical significance. Something is significant if it has a p value of less that 0.05 |
Informed Consent | written consent of a participant before participating |
Minimize Risk and Discomfort | potential benefits must outweigh the risks for the subject |
Debriefing | after the experiment is over, the researcher must tell the participant the purpose of the experiment |
Research Committee | a committee that says if an experiment is ethical or not |
Animal Research | the testing of animals before testing humans so that humans are not risked in the process |