Of the following observational methods, which one does not use intervention by the researcher?
A. naturalistic observation
B. participant observation
C. structured observation
D. field experiment
A. naturalistic observation
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The ______ are the attributes that can differ across individuals, which can be measured from individuals, but can also be controlled by the researcher.
A. variability B. frequency C. regularity D. variables
The analysis of total variability into between-treatments and within-treatments variability is the same for a repeated-measures ANOVA and an independent-measures ANOVA
Indicate whether the statement is true or false
Which of the following best explains why visual acuity declines during middle age?
a. The lens of the eye enlarges and becomes less flexible and less transparent. b. The occipital lobe, the area of the brain that controls vision, becomes less efficient. c. The retina of the eye becomes less pliable and malleable, therefore affecting acuity. d. The phenomenon known as binocular vision becomes less efficient and slowly disappears.
It appears that stress during pregnancy can
A. come from either positive or negative events. B. trigger infections that can cause premature labor. C. reduce the mother's immune system. D. All these are correct regarding stress.