1.3

Question 1

construct

Answer 1

are internal attributes or characteristics that cannot be directly observed but are useful for describing and explaining behavior.

Question 2

operational definition -2 component-

Answer 2

identifies a measurement procedure for measuring an external behavior and uses the resulting measurements as a definition and measurement of a hypothetical construct
-it describes a set of operations for measuring a construct
-it defines the construct in terms of the resulting
measurements

Question 3

discrete variable

Answer 3

consists of separate, indivisible categories. No values can exist between two neighboring categories.
For example, you can count the change in your pocket. You can count the money in your bank account.

Question 4

continuous variable

Answer 4

there are an infinite number of possible values that fall between any two observed values. A continuous variable is divisible into an infinite
number of fractional parts
example our age will take forever to be counted
25 years, 10 months, 2 days, 5 hours, 4 seconds, 4 milliseconds, 8 nanoseconds, 99 picoseconds…and so on

Question 5

real limits

Answer 5

are the boundaries of intervals for scores that are represented on a continuous number line. The real limit separating two adjacent scores is located exactly halfway between the scores. Each score has two real limits.

Question 6

upper real limit/ lower real limit

Answer 6

The upper real limit is at the top of the interval, the lower real limit is at the bottom.

Question 7

nominal scale

Answer 7

consists of a set of categories that have different names. Measurements on a nominal scale label and categorize observations, but do not make any quantitative distinctions between observations.

Question 8

ordinal scale

Answer 8

consists of a set of categories that are organized in an ordered sequence. Measurements on ordinal scale rank observations in terms of size or magnitude

Question 9

interval scale

Answer 9

consists of ordered categories that are all intervals of exactly the same size. Equal differences between numbers on the scale reflect equal differences in
magnitude. there is no zero

Question 10

ratio scale

Answer 10

there is a zero
is an interval scale with the additional feature of an absolute zero point. With a ratio scale, ratios of numbers do reflect ratios of magnitude.