Pysch - Experimentation

Aim: The goal of a experiment, what you want to find out Procedure: The method used to investigate the aim IV: What you change in a experiment or: what you measure in a experiment What is it to 'operationalize'? Make it clear how you measured a variable Hypothesis: The predicted outcome of experiment Experimental/Alternative Hypothesis:#is manipulated predicts OV changes when Null hypothesis: States there is no impact of the IV on OV Control condition: e. g. Placebo trial, a standard which other conditions can be compared. Difference b/w lab/field/natural experiment: Lab -controlled, high control of variables, Artifical setting (constructed/ Field -Real world setting, moderate control over variables, high ecological value Natural -No manipulation, limited control, high enologoed validity Confounding Variables: - may distort/hide effects of another variable, Can't control Demand characteristics: clues in a experiment that may lead participants to infer researchers expectations or purpose Single blind: participants don't know what experimental condition they'll go to Double blind: Researchers and participants don't know what experimental condition participants are in Artificiality: The extent to which experimental settings and conditions don't replicate red acid Participant variability: Differences among participants in a experiment

Researcher Bias: Errors or prejudice of researchers in research process, potential inaccurate results