If research participants are assessed with a particular questionnaire early in a study, but the researchers change the questions for later assessment so participants can't simply repeat answers
what potential thread to internal validity would be at work here?
a. instrumentation.
b. testing.
c. selection.
d. history.
A
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Zeena is 3 months old. She is taking part in a research study in which one end of a string is tied to her wrist and the other end is tied to a screen. When she moves her hand, the screen lifts and she can see a toy on the other side. How many days after learning this task will Zeena be able to remember it?
a. 12 hours b. 1-2 days c. 3-4 days d. More than one week
The best way to help children understand and remember mathematical knowledge is to
A) discourage them from using their fingers to count. B) help them to memorize mathematical rules. C) encourage them to use backup strategies. D) give them word problems that use numerous mathematical operations.
Charles Spearman posited that generalized intelligence (g) is comprised of
A. emotional and social intelligence. B. fluid and crystallized intelligence. C. crystallized intelligence and specific factors. D. fluid and emotional intelligence.
The basic nerve cell of the nervous system is called a
a) synapse. b) dendrite. c) neuron. d) myelin.