What is a confound and how is it related to internal validity?
What will be an ideal response?
A confound is an uncontrolled extraneous variable or flaw in an experiment. It is a threat to internal validity because it means that the results of the experiment might not be due to the manipulation of the independent variable, but instead to the confounded variable.
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Cade has been having trouble waking up and staying awake during the day. He sleeps long hours at night and still feels tired all of the time. What would be a likely diagnosis?
a. hypersomnolence disorder b. sleep inertia c. sleep apnea d. cataplexy
During meiosis, which of the following best describes a chromosome's failure to divide properly resulting in a person having 45 or 47 chromosomes?
Chromosomal disorder Genetic misprinting Mitosis air Gene displacement
_________ refers to the formation of parent-infant attachment
A) Bonding B) Transition C) Conditioning D) Convergence
Anorexia nervosa is typically characterized by
A) an unusually high rate of metabolism B) cyclical fluctuations between extreme thinness and plumpness C) frequent migraine headaches D) a fer of being fat.