What Are the Two Main Types of Research Instruments Used

question 72

Multiple Choice

What are the two main types of research instruments used to collect primary data?

• A) questionnaires and mechanical devices
• B) focus groups and questionnaires
• C) observation scales and personal interviews
• D) personal interviews and online focus groups
• E) focus groups and mechanical devices

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Definitions:

Chunks

Units of information grouped together to be processed or remembered as a single unit, facilitating easier recall.

Magic Number

Refers to the short-term memory capacity, traditionally considered to be 7±2 items, as postulated by psychologist George A. Miller.

Short-term Memory

The ability to keep a limited quantity of data actively accessible in one's consciousness for a brief duration.

Miller

George A. Miller was an American psychologist who made significant contributions to the cognitive psychology field, notably proposing that the human mind can hold 7 ± 2 pieces of information in short-term memory.