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Flashcards in Ch7Research Deck (13):
1

According to the text, one of the most important functions of clinical science- and science in general- is to determine ________.

cause and effect

2

How are 'independent variables' defined?

aspects of a study that a scientist-practitioner either controls or chooses; do not rely on other variables for their changes

3

What is a typical IV for all rehab professionals?

treatment

4

How is the independent variable identified?

by the aspect that has changed, not by the conditions that result from the produced change

5

How are dependent variables defined?

the outcomes of a study, whether clinical intervention or not; values depend on changes in the IV

6

What are some DVs in physical therapy?

range of motion, pain rating, and performance on outcome measures

7

What is meant by the statement, 'a dependent variable must be operationally defined'?

the researcher must decide how to MEASURE the outcome

8

What are 'intervening variables'?

largely mental processes that supposedly "intervene" between input and outcome; ex- intelligence, motivation, and executive function

9

How is 'functional relationship' defined?

some causal relationship between inputs and outcomes

10

What are the two major types of functional relationships?

1. a LINEAR relationships exists when IV changes by a constant amount and DV also changes at constant amount 2. a NON-LINEAR relationship exists when constant changes in the IV produce non-equal changes in the DV

11

Why are graphs used?

to understand functional relationships among variables

12

When is a line graph used?

when the IV represents a continuum of some kind

13

When is a bar graph used?

when the values of the IV are not in any hierarchical order