Broadly speaking, what does my approach to manipulate my independent variable involve

Suppose you were interested in studying sexism. You tell half of your participants that an essay was written by "John" and the other half of your participants that the essay was written by "Joan". Participants then grade the essay. Broadly speaking, your approach to manipulating your independent variable involves a. Presenting different stimuli. b. Manipulating the information given to participants. c. Manipulating the social setting. d. Stressing a psychological system. I beleive the answer is c. Any luck?

Inherent personal characteristics that distinguish one person from another

Inherent personal characteristics (such as sex and age) that distinguish one person from another ara called a. Participant variables b. Extraneous variables c. Population characteristics d. Selection criteria I believe the answer to this is a. Participant variables. How am I doing?

The external validity

Dr. Veda recruited several students from her research methods course to serve as research participants in one of her experiments. Given that they are highly interested in research methods and are all doing very well in her research methods course, the external validity of Dr. Verda's study may be limited to a. A ceiling effect. b. Participant mortality. c. A floor effect. d. Participant sophistication. I believe that the answer is a. How am I doing?

People posing as victims of a crime asdked "real" participants to help them

Dr. Block, a social psychologist, enlisted several undergraduate students to help out his study. They posed as victims of a crime and asked "real" participants to help them. The proper research term for Dr. Block's undergraduate students is a. Assistants. b. Confederates. c. Helpers. d. Evaluators I feel that the answer is confederates. Am I missing something?

Answer questions scientifically

Suppose you are advising a novice researcher about what she must learn in order to answer questions scientifically. Which of these alternatives is not something she must learn? a. How to apply a critical eye to all phases of research b. How to apply research rules to the contexts of different research problems c. The specific terms and specific meanings of research d. How to be a statistician I beleive that the answer is d. How am I doing?