PSY 10A Lecture Notes - Lecture 1: Scientific Method, Internal Validity, Falsifiability
Document Summary
Increases internal validity because it deals with individual differences. Do this to avoid bias and you can generalize the conclusions to the population. The mean tends to be sensitive to outliers ( 2 standard deviations away from the mean) If the distribution is bimodal or positive or negative skewed. Theories are informed by data (can support or not support a theory) Random assignment and random sampling are the same thing crap. Random sampling-random picking of people from a population for a study. The mean or average is not always the best measure of central tendency fact. Correlations are predictive and can be helpful in finding at risk things. Can"t conclude you have proven a fact just because data has supported theory and you did a good job controlling all factors of experiment. Beliefs are held to be true because an expert says its true. Rational/deductive method use reasoning to come to a conclusion.
