LCT3: Scientific Method Flashcards Preview

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Flashcards in LCT3: Scientific Method Deck (12):
1

What is the scientific method?

a method of inquiry based on Systematic gathering of Observable, Measurable evidence - also known as an empirical method

2

All research is based on...

find one (important) way of trying to know/learn about things

3

Explain the cyclical theory (4 steps)

1) start with big ideas/theories
2) make hypotheses or predictions about those things
3) Test hypotheses thru research/collection of data
4) evaluate the results and re-evaluate the theory based on those results

4

Whats something that has to take place during the scientific method?

Replication - steps must be repeatable... one study by itself means nothing in the science world (publication and peer review is a necessity)

5

Operational Definition

Measurable definition of a construct

6

Measure

a way of making observations, or measuring the construct

7

Population

the group the researcher wants to know about

8

Sample

a partial collection of a population - researchers try to generalize findings from sample to population

9

What are three types of samples researchers can take?

1) representative
2) convenience
3) random

10

What is a representative sample?

matches population on important characterisitics that might influence results

11

What is a convenience sample?

from an available population (usually skewed)

12

What is a random sample?

everyone has equal chance of being selected