In an experiment, the researcher was unintentionally talkative to one of the participant groups. What best describes the threat to internal validity and why is it a threat?
a. Randomness, since being talkative can make this particular group more relaxed and better able to perform.
b. Participant-maturation interaction, since being friendly to one group can introduce a confound.
c. History, since this unintended interaction was not part of the independent variable, a confound was introduced.
d. Testing, since the other group might feel cheated for being treated more formally by the researcher, and this introduces counterbalancing.
C
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In the original source material from The Mentality of Apes, Köhler argued that "a particular difficulty must lie in the ____.”?
a. ?role of instincts b. ?lack of direction of some subjects c. ?role of imitation d. ?role of genius e. ?problem itself
Which of the following is a learned motive?
a. curiosity b. power c. physical contact d. pain avoidance
The ____________________ reflex occurs in response to the stroking of the underside of the foot from heel to toes
Fill in the blank(s) with correct word
The dimension of auditory experience related to the intensity of a sound wave is called _______________
a. frequency b. pitch c. loudness d. timbre