WK3 L1 variables and measurement

Question 1

variable

Answer 1

any event, behaviour or individual characteristic that can have more than one possible value

Question 2

levels

Answer 2

values that a variable may possibly take

Question 3

conceptual variables

Answer 3

abstract ideas that form the basis of a research question

Question 4

operational variables

Answer 4

the definition of an abstract concept used by a researcher to measure or manipulate the concept in a research study

Question 5

reliability def for subject matter

Answer 5

consistency

Question 6

validity def for subject matter

Answer 6

accuracy

Question 7

reliability def for measurement scales

Answer 7

the extent to which a measure is consistent

Question 8

validity def for measurement scales

Answer 8

the extent to which a measure is accurate

Question 9

correlation coefficient

Answer 9

measure the direction and strength of a relationship between variables

Question 10

3 ways to test for reliability

Answer 10

test-retest reliability, internal consistency reliability, inter-rater reliability

Question 11

test-retest reliability

Answer 11

Reliability measured by looking at the correlation between scores on a measure given at one time with scores with scores on the same measure given at another time

Question 12

internal consistency reliability

Answer 12

Reliability measured by assessing the correlation between items on a scale collected at one point

Question 13

inter-rater reliability

Answer 13

The extent to which the ratings of two or more judges (observers) correlate with each other

Question 14

the four validities

Answer 14

statistical, internal, external and construct