Research Methods part.2
- Hindsight bias- tendency of people to overestimate their ability to have predicted an outcome that could not possibly have been predicted.
- Single-blind-a test or experiment in which information that may bias the results is concealed from either tester or subject.
- Double-blind-test or trial,in which any information that may influence the behavior of the tester or the subject is withheld until after the test.
- Mean-average
- Median-The average of the two middle numbers,
- Mode-value that appears most often in a set of data.
- positive correlation- relationship between two variables in which both variables move in the same direction
- negative correlation- relationship between two variables in which both variables move in opposite direction
- Cross-sectonal research-type of observational study that involves the analysis of data collected from a population
- Longitudinalienable research -study, researchers conduct several observations of the same subjects over a period of time, sometimes lasting many years.
- American pschological association(apa)- is the largest scientific and professional organization representing psychology in the United States.
- Descriptime research -used to describe characteristics of a population or phenomenon being studied.
- inferential research To collect data for any statistical srudy a population must first be define
Notes:Research Methods
- Survey-Most common; measures correlation;personal attitudes and opinions
- Case Study-Studying the behavior of one individual
- Naturalistic observation-observing and recording behavior in normal situations without controlling anything
- Experiment- manipulates factors to see the effect on it
- Independent variable- factor that is being manipulated; whats being study
- Dependent variable-What is being measured
- Random sample-represents a population
- Correlational research -statistical measure between two factors;shows how they effect each other
- Hypothesis-Prediction;theory
- Placebo-"i shall please"Substance/condition thats given instead of a presumed active agent;Given to see if its triggers the effect of characterize the active agent Ex: drugs
- Standard Deviation- calculating scores vary around the mean score
- Experimental group-control the variables
- Control groups-don't change nothing;serves to compare it to the experimentalking group
