Exam 5: Introduction to Measurement

A measure that yields consistent scores but does not measure what it is supposed to measure is ____.

The reliability ratio is expressed as ____.

Cronbach's Alpha is mathematically equivalent to the average of all possible split-half correlations.

The type of reliability that is used to assess the consistency of results across items within a test is _______________.

If an instrument looks as though it measures what it is supposed to measure,it has _______________.

Von has a new measure of stress from daily hassles.He finds that it yields consistent scores,but seems not to be measuring stress at all.His test is _______________ but not _______________.

Combining multiple independent measures to get at a more accurate estimate of a variable is referred to as ____.

Hannah has developed a scale for assessing social interaction among children with moderate to severe developmental disabilities.Because it is in the early stages,she trains two research assistants in how to use the scale,has them both observe the same children,and compares the scores they give the children.Hannah is assessing ____ reliability.

The formula X = T + E best describes ____.

Ordinal scales have absolute zeroes.

In what level of measurement is the distance from one attribute to another meaningful?​

When a television competition show has a "red" team and a "blue" team,they are using a(n)_______________ scale.

The consistency of results across items within a test is referred to as ____ reliability.

A(n)_______________ scale simply ranks attributes.

The extent to which a measure or instrument actually measures what it is theoretically supposed to measure is _______________.

What is random error and why is it important?

The proportion of truth in a set of scores across your sample can be thought of as ____.

Hannah has developed a scale for assessing social interaction among children with moderate to severe developmental disabilities.Because it is in the early stages,she has many dozens of potential items and decides to create two versions of the test from among her many items and then have individual observers score the same children using the two different versions.Hannah is assessing ____ reliability.

Ahran develops a measure of test anxiety and finds that,on average,it measures test anxiety for the group,but individual scores are highly variable from test to retest.His test is _______________ but not _______________.

A measure that consistently and accurately measures what is supposed to measure is ____.