Flashcards in Chapter 2 pt.2 Deck (20):

1

## Descriptive/ Correlational Methods are used when a researcher cannot ___________ the variables under study

### manipulate

2

## What are different types of descriptive/correlational methods?

###
-naturalistic observation

-case study

-survey

3

##
What type of descriptive/correlational method is this:

Researcher engages in careful observation of behavior without intervening directly with the subjects.

### Naturalistic Observation

4

##
What type of descriptive/correlational method is this:

In-depth investigation of an individual subject.

### Case Study

5

##
What type of descriptive/correlational method is this:

Researchers use questionnaires or interviews to gather information about specific aspects of participants’ behavior.

### Survey

6

## In most research there is usually some combination of ________ information and __________ data

###
survey

observation

7

## How do we measure a relationship between two variables when we didn’t manipulate anything?

###
- Correlation (statistical test)

- Measures the pattern of two variables, result tells you if there is a reliable pattern of change between the two variables

8

## When the pattern is reliable (i.e., happens consistently), we say the 2 variables are ___________.

### correlated

9

## How do correlation statistics work?

###
-There's a correlation coefficient

-the correlation is expressed a s a number between 0 & 1

10

## statistic used to summarize of degree of relationship

### correlation coefficient

11

## A correlation can be ________ or _______ ; or weak or strong

###
negative

positive

12

## A correlation can be negative or positive; or ______ or _______

###
weak

strong

13

## ________ __________ _________=increased ability to predict one variable based on the other

### higher correlation coefficients

14

##
In terms of correlation:

- Larger numbers = ________ relationship between variables

- Smaller numbers = _______ relationship between variables

###
stronger

weaker

15

##
In terms of correlation:

-________ numbers = stronger relationship between variables

-_______ numbers = weaker relationship between variables

###
larger

smaller

16

## Two variables may be highly correlated, but not ________ _______

### casually related

17

## Two variables may be highly ________, but not causally related

### correlated

18

## What are the advantages of Descriptive/Correlational Research?

### Explore questions that cannot be examined experimentally

19

## What are the disadvantages of Descriptive/Correlational Research?

### Investigators cannot control events to isolate cause and effect

20