Random assignment to either the control or experimental group is an important aspect of experimental procedures. Random assignment is used to ensure that:
a. a representative sample of participants is initially selected
b. expectancy effects are minimized within the experiment
c. the independent variable will be reliable and valid
d. the experimental group and the control group are as similar as possible
D
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When an experimenter knows what the results of an experiment "should" be, it is possible for the results to be unintentionally influenced. This is an example of
a. evaluation apprehension b. role demands c. experimenter bias d. selection bias
Which individual exhibits the condition known as gender identity disorder?
a) Abigail, who is bisexual b) Eduardo, who has low testosterone levels c) Francis, who has a genital abnormality involving the sex chromosomes d) Paul, who has male genitals but believes he is trapped in the wrong body
The point of communication between two neurons is the
A. synapse. B. terminal. C. synaptic vesicle. D. sodium channel.
Recall that when researchers provided workers in a unit of a Dutch factory with feedback on energy consumption in other units, energy-saving behaviors drastically increased. These results point to ________ as a useful process in encouraging energy-saving
a. cognitive dissonance b. self-perception c. social comparison d. a commons dilemma