A Researcher Is Interested in Examining the Development and Effects

question 415

Multiple Choice

A researcher is interested in examining the development and effects of shyness. To do this, she identifies a group of 100 shy children-50 eight-year-olds and 50 ten-year-olds. She takes various measures of shyness and compares the two groups. This design is best described as

• A)a cross-sectional design
• B)a longitudinal design
• C)a placebo design
• D)a sequential design
• E)a tracking design

Recognize cluster sampling and its uses.

Distinguish between the population, sampling frame, and sampling method.

Understand bias types in surveys and their implications.

Distinguish between voluntary response sampling and convenience sampling.