When using split-half reliability, a test developer must use the _________ to ensure that the test length does not affect the accuracy of the reliability estimate
a. Kuder-Richardson formula 20 (KR-20)
b. Spearman-Brown prophecy formula
c. Cronbach's coefficient alpha
d. Standard error of measurement
Answer: b. Spearman-Brown prophecy formula
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Which of the following is a cognitive theorist MOST likely to study?
a. How children confront and resolve developmental crises in their lives b. How id, ego, and superego work together to form a healthy personality c. How patterns of reinforcement and punishment promote learning d. How children perceive and mentally represent the world
Children who receive treatment are ____
a. at the same level of functioning as those who are not treated b. less likely to discuss problems with their parents c. less likely to progress then children who are not in treatment d. better off than children who do not receive treatment
Eduardo’s father, a heavy smoker, died fairly young from lung cancer. Eduardo looks at his small children and wants to lead a long and healthy life. What should be his focus??
a. ?researching his father’s health history b. ?avoiding unnecessary risks c. ?periodic screening tests d. ?lifestyle factors
A key physical component of puberty is the ____ gland, which regulates pubertal changes by signaling other glands to secrete hormones
a. thyroid b. adrenal c. pituitary d. pineal