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- Psychology 201 Chapter 11.docx
- UNIT 4 psy 201.docx...

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Psychology 201 Chapter 11~12 Level- the particular value of the independent variable True experiment- Researcher has complete control over all aspects of research Ceiling- Interaction in which effect of one independent variable is smaller when paired with higher levels of another independent variable Two-Conditions Between-Subjects- research design in which each participant experiences only one of two levels of independent variable Multiple-Conditions Between-Subjects- research design in which each participant experiences only one of multiple levels of independent variable Factors- the independent variables in an experiment Multiple-Conditions Within-Subjects- research design in which each participant experiences each other multiple levels of independent variable One-Group Pretest-Posttest- bad research design that measures single group on dependent variable before and after treatment Non-equivalent- control group is selected from different population than experimental group Main- effect of one independent variable averaged over all levels of another independent variable Block Randomization- each condition in within-subjects design occurs in random order within blocks comprised of every condition Interaction- effect of one independent variable depends on level of another independent variable Condition- a group or treatment in an experiment Antagonistic- interaction in which two independent variables reverse each other's effect Counterbalance- each condition in within-subjects design occurs in each ordinal position Mixed- factorial design with between-subjects variable and within-subjects variable Latin Square- each condition in within-subjects design occurs in different order for each participant Order Effect- ordinal position of condition in within-subjects design affects dependent variable Synergistic- interaction in which two independent variables enhance each other's effect

Factorial- research design that involves all combinations of at least two levels of two or more independent variables One-Group Posttest-Only- bad research design that measures single group on dependent variable after treatment. Sequence Effect- interaction due to ordinal position of conditions in within-subjects design affects dependent variable Two-Conditions Within-Subjects- research design in which each participant experiences each of two levels of independent variable Reverse Counterbalancing- each condition in within-subjects design occurs first in order and then in opposite order...