Unit 0- things I dont know

Sampling bias

Picking and choosing (not random)

convivence sampling

does not result in a representative sample, makes it unable to be generalizable, results in bias

correlational coefficient

A statistical measure that describes the strength and direction of a relationship between two variables, ranging from -1 to 1.

participant bias

The tendency of participants to influence the results of an experiment due to their expectations or reactions, leading to inaccurate or misleading results.

Experimental group

independent variable, the variable being manipulated/ changed

control group

dependent variable, the variable being measured/ not changed. Used for comparison

Normal curve with #’s

graph, 68%, 34 and 34. 95% 13.5 and 13.5, 99% 2 and 2 distribution of data in a symmetrical bell shape representing probabilities.

Statistical significance

If there is a big difference between the experimental and control group

effect size

quantitative measure of the magnitude of the difference between the groups

deception

a research technique where participants are misled about the true purpose of a study to prevent bias.

debriefing

the process of informing participants about the true purpose of a study after its completion, including any deception that was used.