If exposure to an earlier assessment affects behavior when a participant is assessed a second time, which of the following types of effects might the researcher suspect is the cause?
A. instrument decay
B. maturation effects
C. history effects
D. testing effects
Answer: D
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In Exercise 7, the conditioning of the medium-intensity light (CSML) was blocked by the prior conditioning of the medium-intensity tone (CSMT) in Stage 1 before the two stimuli were presented in a compound CS and paired with the medium-intensity electric shock (USM) in Stage 2. Subsequently, when tested separately in extinction (Stage 3), the movement ratio for the
a. tone and light were both approximately 0.5. b. light was greater than 0.5. c. light was less than 0.5 and equal to that for the tone. d. light was approximately zero.
During a study using the behavioral research strategy, it is common to prepare a list of behaviors called behavioral categories before the actual observation begins. The least likely purpose for this procedure is to ____
a. ensure the objectivity of the measurements b. evaluate the reliability of the measurements c. provide an operational definition for the variables being measured d. simplify the recording task for the observer(s)
The "bags" of neurotransmitters within an axon ready to be released are called:
A) vesicles. B) neurotransmitters. C) terminal buttons. D) synapses.
__________ improves steadily, reaching 20/80 by 6 months and an adult level of about 20/20 by 4 years
A) Contrast sensitivity B) Visual acuity C) Depth perception D) Pattern perception