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Term

Naturalistic Observation
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Longitudinal Study
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Psych Ch. 2 Vocab

TermDefinition
Naturalistic Observation Research method in which the psychologist observes the subject in a natural setting without interfering
Longitudinal Study Research method in which data are collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development
Case Study Research method that involves an intensive investigation of one or more participants; analysis of thoughts, feelings, beliefs, experiences, behaviors, or problems of an individual
Cross-Sectional Study Research method in which data are collected from groups of participants of different ages and compared so that conclusions can be drawn about differences due to age
Experimental Group The group to which an independent variable is applied
Control Group The group that is treated in the same way as the experimental group except that the experimental treatment (the independent variable) is not applied
Self-Fulfilling Prophecy A situation in which a researcher's expectations influence that person's own behavior, and thereby influence the participant's behavior
Single-Blind Experiment An experiment in which the participants are unaware of who received the treatment
Double-Blind Experiment An experiment in which neither the experimenter nor the participants know which participants received which treatment
Placebo Effect A change in a participant's illness or behavior that results from a belief that the treatment will have an effect rather than from the actual treatment
Descriptive Statistics The listing and summarizing of data in a practical, efficient way
Frequency Distribution An arrangement of data that indicates how often a particular score or observation occurs
Normal Curve A graph of frequency distribution shaped like a symmetrical, bell-shaped curve; a graph of normally distributed data
Central Tendency A number that describes something about the "average" score of a distribution variance
Inferential Statistics Numerical methods used to determine whether research data support a hypothesis or whether results were due to chance
Created by: A'syriah K.
 

 



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