PSY 310 Chapter Notes - Chapter 7: Statistical Hypothesis Testing, Demand Characteristics, Emic And Etic

• School: Stony Brook University
• Department: Psychology
• Course: PSY 310
• Professor: Christian Luhmann

Document Summary

Conducting a good experiment ii: final considerations, unanticipated influences, and cross-cultural issues. Type of participants is based on precedent (often college students), availability, and type of research project. Number of participants is based on finances, time, and availability. Power - the probability that a statistical test will be significant (i. e. , the experimental hypothesis is accepted when it is true). Generally speaking, the greater the number of participants, the higher the power of the statistical test. The use of homogeneous groups of participants allows the experimenter to test smaller groups, whereas heterogeneous groups dictate using more participants. Automated equipment can be used for iv presentation and dv recording, but often quality data can be recorded with less sophisticated equipment. Rosenthal effect - the result when an experimenter"s preconceived idea of appropriate responding influences the treatment of participants and their behavior. Single-blind experiment - an experiment in which the experimenter (or participants) is unaware of the treatment the participants are receiving.