test 1 lecture 2

Question 1

a test measures what it is meant to measure

Answer 1

validity

Question 2

face validity

Answer 2

ascertains that the measure appears to be assessing the intended construct under study

Question 3

construct validity

Answer 3

is used to ensure that measure is actually measuring what it intends to

Question 4

8 coomon threats to internal validity

Answer 4

history
maturation
testing
instrumrntation
statistical regression 
attrition
diffusion of treatment
selection bias

Question 5

history

Answer 5

effect of events common to subjects in their everyday life

Question 6

maturation

Answer 6

growing older, stronger, wiser

Question 7

testing

Answer 7

any changes that is attributed to the affects of reapted assessments

Question 8

intrumentaion

Answer 8

changes in measurring instrument or procedures

Question 9

statistical regression

Answer 9

if scores were extreme they usually return to normal levels during repeated measurments

Question 10

selction biases

Answer 10

diffference in groups due to the differential selection of population

Question 11

attrition

Answer 11

any changes in overall scores due to loss of subjects

Question 12

diffusion of treatment

Answer 12

control group recieves inadvertently portions of the intervention of ecperimental group

Question 13

internal validity

Answer 13

if results can can be generalised beyond the conditions of the experiment
(to other populations/settings and circumstances)

Question 14

7 common threats to external vaildity

Answer 14

generality across all subjects 
generalitiy across settings
generalitiy across respose measures
generaloty across time
reactivity assessment
sensitization assessment
pretest assessmnet
multiple-treatment inference

Question 15

what is generality across response measures

Answer 15

can results be extended to other behaviours

Question 16

what is reactivity assessment

Answer 16

the degree in which a child knows that they are being observed and how much it effects their behaviour

Question 17

multipe-treatment inference

Answer 17

does the order of intervension contribute to results

Question 18

reliability

Answer 18

the degree to ehich an assessment tool produces stable and consistant rolls

Question 19

test retest reliabillity

Answer 19

measure of reliability where same test is done twice over a period of time. scores can then be correlated

Question 20

inter-rater reliability

Answer 20

different test that probe the same construct produce similar results.