in a correlational design researchers

ATI RN

Human Growth and Development Exam 1

1. In a correlational design, researchers __________.

A. gather information on individuals without altering their experiences
B. divide events and behaviors of interest into two types: dependent and independent variables
C. use an evenhanded procedure to assign people to two or more treatment conditions
D. directly control or manipulate changes in the independent variable

Correct answer: A

Rationale: In a correlational design, researchers gather information on individuals without altering their experiences. Correlational studies examine the relationship between two or more variables without any manipulation or control by the researchers. The researchers simply observe and measure the variables of interest without intervening in any way. Choices B, C, and D are incorrect because they describe aspects related to experimental designs rather than correlational designs. In an experimental design, researchers manipulate variables, assign participants to different treatment conditions, and control changes in the independent variable, which is not the case in correlational studies.

2. Spatial skills __________.

A. increase exponentially in early childhood
B. support children's improved executive function
C. develop gradually over childhood and adolescence
D. are typically housed in the left hemisphere

Correct answer: C

Rationale: Spatial skills develop gradually over childhood and adolescence, reflecting the increasing complexity of these abilities. Choice A is incorrect because spatial skills do not increase exponentially in early childhood but rather develop steadily. Choice B is incorrect as spatial skills are not directly linked to executive function. Choice D is incorrect because spatial skills are not typically housed in a specific hemisphere but involve a network of brain regions.

3. Sigmund Freud constructed his psychosexual theory __________.

A. on the basis of his adult patients' memories of painful childhood events
B. by conducting studies of animal behavior
C. on the basis of interviews with institutionalized children and adolescents
D. by carefully observing his own children

Correct answer: A

Rationale: Sigmund Freud constructed his psychosexual theory on the basis of his adult patients' memories of painful childhood events. Freud believed that events in early childhood had a significant impact on an individual's development and personality. He used his patients' recollections of childhood experiences to develop his theories on psychosexual development. Choice B is incorrect as Freud did not base his theory on studies of animal behavior. Choice C is incorrect as Freud's theory was not solely based on interviews with institutionalized children and adolescents. Choice D is incorrect as Freud did not construct his theory by observing his own children.

4. Which statement provides an example of an age-graded influence?

A. Paul learned to play the violin at a young age.
B. Jack enjoys hiking in the mountains.
C. Sarah prefers reading mystery novels.
D. Alex excels in mathematics.

Correct answer: A

Rationale: The corrected statement 'Paul learned to play the violin at a young age' provides an example of an age-graded influence. This is because learning to play the violin is a behavior that is typical or expected at a certain age, reflecting how age influences individuals' experiences and development. In contrast, choices B, C, and D do not directly relate to age-graded influences. Jack's enjoyment of hiking, Sarah's preference for reading mystery novels, and Alex's proficiency in mathematics are not inherently tied to age-related developmental influences.

5. Which factor disrupts the brain's regulation of hunger and metabolism?

A. Self-regulation
B. Frequent eating out
C. Reduced sleep
D. Using screen media

Correct answer: C

Rationale: Reduced sleep is the correct answer as it affects hormones that regulate hunger and metabolism, leading to increased appetite and weight gain. Self-regulation is not directly related to the brain's regulation of hunger and metabolism. Frequent eating out may impact food choices and portion sizes but is not specifically linked to disrupting the brain's regulation. Using screen media can affect sleep patterns but is not as directly related to the brain's regulation of hunger and metabolism as reduced sleep.