PSYCH-2245 Lecture Notes - Lecture 4: Internal Validity, Chromosome, Proband
Document Summary
Psych 2245: chapter 4: research methods: describe the basic components of research, including the distinction between a hypothesis and a testable hypothesis, independent and dependent variables, internal and external validity,and statistical and clinical significance. Usually an educated guess that needs the support of tests and data to prove or disprove. Must phrase the hypothesis to indicate a test that must be done. If the plant is placed in sunlight for a longer period of time, then it will grow . The variable in the experiment that is manipulated by the tester. The variable that changes as a direct result of the independent variable. Refers to the extent that we are confident that the independent variable caused the dependent variable to change. Confidence that the sunlight is the factor that changed the height of plant. A group that is the exact same as the experiment group except it isn"t exposed to the independent variable.
