The one-group posttest-only design should be avoided because
a. All experimental designs have to have more than one group
b. There are many uncontrolled threats to validity
c. It produces unreliable results
d. It will not be possible to code the data
b
Psychology
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The function of speech by which a person's understanding is expanded and advanced is
social mediation. guided participation. overregularization. theory of mind.
Psychology
Eyewitness testimony has been found to be most accurate when
A) the witness has ample time to observe the person under good viewing conditions. B) the witness is presented a simultaneous, as opposed to a sequential, lineup. C) a weapon is used in the commission of a crime. D) the witness is distracted or must fill in gaps in their memory with stereotyped information.
Psychology