Xiao is gathering research on the number of daily calories people typically consume at various ages. He gathers data about the number of calories eaten by 25 people at each of the following ages: 10, 20, 30, 40, 50, 60, and 70 years
What type of research design is Xiao using?
A) continuous
B) cross-sectional
C) sequential
D) longitudinal
Answer: B
Rationale: Cross-sectional designs are used to measure and compare samples of people at different ages at a given point in time. In contrast, longitudinal design follows the development of the same set of individuals through time.
You might also like to view...
In the context of Erikson's psychosocial stages of development, identify a true statement about the personal conflicts in the developmental stages
a. The potential for these personal conflicts exists at birth. b. Each conflict or crisis can be overcome in one of two ways. c. The personal crises involve a shift in perspective. d. All of these are correct.
Which of the following is true of the hindbrain?
A. The substantia nigra is located here. B. The reticular formation runs through this area. C. The corpus callosum is located here. D. The medulla is a relay station for sensory information.
In comparison to normal subjects, many patients with schizophrenia have (a) relatively larger:
a. ventricles c. receptors b. frontal lobe d. corpus callosum
The nucleus accumbens a. does not participate in learning of any type
b. is important to long-term, but not to short-term learning. c. is important in episodic and semantic memory, but not procedural memory. d. contributes to the evaluation of reward during procedural learning.