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Psych BCD Vocab

TermDefinition
Institutional review A committee review to make sure a research study follows ethical guidelines and protects participants.
Informed consent Participants are told about the study and agree to participate.
Informed assent A minor's agreement to participate in research, usually along with parental consent.
Protection from harm Researchers must protect participants from physical or psychological harm.
Confidentiality Researchers keep participants' personal information private.
Debriefing Explaining the true purpose and procedures of a study to participants after it ends.
Central tendency A measure describing the typical or central score in a set of data.
Mean The average; add all scores and divide by the number of scores.
Median The middle score when data are arranged from lowest to highest.
Mode The most frequently occurring score.
Percentile rank The percentage of scores that fall below a particular score.
Range The difference between the highest and lowest scores.
Normal curve A symmetrical, bell-shaped distribution where most scores are near the mean.
Bimodal distribution A distribution with two distinct peaks or modes.
Standard deviation A measure of how much scores vary or spread out from the mean.
Positive skew A distribution with a long tail extending toward higher scores.
Negative skew A distribution with a long tail extending toward lower scores.
Scatterplot A graph showing the relationship between two variables.
Correlation The extent to which two variables are related.
Positive correlation As one variable increases, the other tends to increase as well.
Negative correlation As one variable increases, the other tends to decrease.
Correlation coefficient A number from -1.00 to +1.00 that indicates the strength and direction of a correlation.
Created by: user-1880431
 

 



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