Author Question: If relevant characteristics of a population are known, a researcher can draw a ____ sample that may ... (Read 79 times)

krzymel · **on:** Jun 20, 2018

If relevant characteristics of a population are known, a researcher can draw a ____ sample that may be more representative of the population than a simple random sample.

a. systematic c. stratified
b. purposive d. probability

Question 2

Which of the following best reflects the concept of scaffolding?

a. Students are required to retake tests or work on papers until a minimum passing grade is achieved.
b. The teacher demonstrates and explains how to solve quadratic equations.
c. Students are asked to write a summary of the previous day's lesson.
d. The teacher ends each lesson with fifteen minutes of drill-and-practice exercises.