Educational psychology procedures are noted.

Jack is doing a project in educational psychology. Before the experiment, he rank-orderes all his participants according to achievement test scores. He takes the top two scores and randomly assigns one to the experimental group and one to the control group Then he takes the next two scores and randomly assigns one to the experimental group and one to the control group. He continues in this manner until all participants have been assigned. What procedure is Jack using?

designing a study to test hypothesis

Dr.Chen personally believes that Northerners are much colder and ruder than Southerners; thus he is currently designing a study to test his hypothesis. Which criterion for conducting a scientific research is Dr. Chen violating: a. Objectivety b. Emperiricism c. Control d. Reliability The answer is not a. Objectivity. Also there is an ethical taboo with this question. I think that the answer is relaibility

unfair tests lack?

Gail complains that her history was unfair and "did not cover the material!" She is complaining that the tests lacks a. Reliability b. External validity c. Content validity d. Power The answer to this I believe is a. reliability.

manipulating an indenpedent variable

Dr. Friedman, an environmental psychologist, presented varioes amounts of background noise to his participants. He measured whether their answers to a standard set of mental problems were affected. His approach to manipulating his independent variable involved a. Manipulating the content b. Manipulating the social setting c. Stressing a psychological system d. Manipulating interviewing variables I think that the answer is a. Manipulating the context. I appreciate your imput.

Double-blind procedure

Researchers at Pharm-X, a pharmaceutical company, are testing and comparing the effects of Drug A and Drug B on participants' allergies. The researchers are using a double-blind procedure to conduct their test. This means that a. The participants know which drug they are receiving. b. The experimenters administering the drugs know which drug the participants is receiving. c. Neither the participants nor the experimenters know which drug the participant is receiving. d. The participants and experimenters are physically separated from each other during the course of the experiment.