LESSON 8

Question 1

the ability of the instrument to ‘correctly screen or identify the variables’ to be manipulated

Answer 1

sensitivity

Question 2

the ability of the instrument to ‘correctly identify non-cases or extraneous variables’ and screen out those condition not necessar

Answer 2

specificity

Question 3

the ability to ‘identify a case correctly’

Answer 3

sensitivity

Question 4

the ability to ‘identify a non case correctly’

Answer 4

specificity

Question 5

to screen in or diagnose ‘a condition correctly’

Answer 5

sensitivity

Question 6

an instrument yielding TRUE POSITIVES

Answer 6

sensitivity

Question 7

to screen in or diagnose ‘without the condition correctly’

Answer 7

specificity

Question 8

an instrument yielding TRUE NEGATIVES

Answer 8

specificity

Question 9

this takes place when ‘changes in subjects occur during experimental study’

Answer 9

maturation

Question 10

a pre test is requisite

Answer 10

testing

Question 11

this refers to ‘the influence to the pre-test’, which already projects the result of the post test scores

Answer 11

testing

Question 12

the existence of the difference between pre-test and post-test results caused by damage in the accuracy

Answer 12

instrumentation change

Question 13

this happens when a ‘difference exists between the subject drop out rates’ of either the experimental group and the control group

Answer 13

mortality

Question 14

the degree to which ‘study results can be influenced or affected by external factors’ or population and settings

Answer 14

external validity

Question 15

occurs when study participants respond in a particular manner, or there is ‘obvious change of behavior because they are aware that are being observed’

Answer 15

hawthorne effect

Question 16

a threat to the study which results when the
‘‘researcher’s behavior influences the behavior of the subjects”

Answer 16

experimenter effectn