Which of the following best explains why the reliability of a personality test will not be perfect?
A. People's personalities differ from one another.
B. The behavior of an individual is not consistent at all times.
C. Unforeseen variables frequently affect the consistency of any measurement tool.
D. Often there is no relationship between what is measured and what the test intends to measure.
Answer: B
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Suppose we use the bookshelf analogy to explain the capacity of short-term memory. When you use chunking to increase that capacity, ____
a. ?you are able to pack a virtually unlimited number of items into larger chunks or “books” b. ?the size of the bookshelf is actually changed c. ?you are changing the length of the shelf but not the depth of the shelf d. ?you are not actually changing the size of the bookshelf
For a 6-year-old, which of the following fine motor tasks is developmentally appropriate?
writing complete sentences, reading a 2nd-grade level book, and spelling words such as "hippopotamus" running a 4-minute mile, jumping over hurdles, and dribbling a soccer ball writing the letters of the alphabet, writing their name, and writing numbers from 1 to 10 writing in cursive, drawing in three-dimensional shapes, and using symbolism in storytelling
Glucose, a small uncharged molecule, can pass through the cell membrane, but sodium ions do not pass through the membrane easily. What is the most accurate explanation for these findings?
a. Cell membranes have carrier proteins for glucose but not for sodium. b. The cell membrane is semipermeable. c. The membrane potential makes it difficult for sodium ions to diffuse across the membrane. d. The sodium-potassium pump keeps sodium inside the cell.
Myelinated axons consume less energy than unmyelinated axons because:
A) Action potentials occur faster B) The sodium potassium pumps have less work to do C) Graded potentials do not consume energy D) The sodium potassium pumps are more efficient on these neurons