Dec 16, 2024
Hindsight bias - aka the ¨I knew it all along¨ phenomenon Positively skewed - Negative tail points left Negatively skewed - Positive tail points right Operational definition - what one is looking for in an experiment Case study - get a full detailed picture of participants False consensus effect - the tendency to overestimate how much others agree with us. Population - the amount of participants that are selected Random sample - everyone has an equal chance of being selected Naturalistic observation - observing and recording behavior in the wild Standardization - when a test is made uniform or set to a specific standard Correlation coefficient - indicates a measure of the direction and strength of a relationship between two variables Illusory correlation - when we see an association between two variables that aren´t actually associated Single Blind Procedure - the subjects do not know what group they belong Double Blind Procedure - neither experimenter or subject knows the group they are in Placebo effect - something administered that has no real affect Control group - does not take part of experimentation, they are the comparison group Experimental group - the group in an experiment that receives the variable being tested Random assignment - every participant having an equal chance of being either experimental or control group Independent variable - stands on it´s own Dependent variable - needs the independent variable Social desirability bias - a type of response bias that is tendency of survey responders to answer where they are viewed favorably by others Descriptive statistics - used to organize or summarize a set of data Mean - average of a group of numbers Median - middle of a group of numbers Mode - most frequent of a group of numbers Normal curve - Theoretical, bell-shaped distribution thought to describe the frequency of occurrence of many natural phenomena Inferential statistics - Ways of analyzing data that allow the researcher to make conclusions about whether a hypothesis was supported by the results Standard deviation - the average distance of scores around the mean Statistical significance - indicates whether or not the difference between groups can be attributed to chance or if the difference is likely the result of experimental influences Confounding variable - those that affect other variables that produce spurious or distorted associations between two variables Reliability - it is replicable and is consistent Validity - it measures the extenet to which a test actually assesses what it claims