Tags » CDM

6/22/2018 Everyday Psychometrics: parameter invariance

🌈EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation(5)factor scores

In general, higher guesses combined with lower slips will render a higher threshold for attribute mastery (and thus a lower likelihood of being identified as a master), as the combination of these parameter changes make it simultaneously (1) easier for correct responses to be associated with nonmastery and (2) more difficult for incorrect response to be associated with master.

27 more words
Everyday Psychometrics

Dj Marino - "Xuta Bola 2018"

What have we here?: The tune of a street-side victory celebration going late into the night, lead by Dj Marino of CDM fame

Shelf Life: Two to three spins; good tune with masterful work, but lacks an outstanding piece. 164 more words

House

6/20/2018 Everyday Psychometrics: attribute hierarchy

🌈EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation(5)factor scores

The hierarchy is a hypothesis of cognitive performance in the domain of interest and is subject to falsification if it fails to successfully classify examinees.

73 more words
Everyday Psychometrics

The Power of Prayer

“When we work, we work, but when we pray, God works.”
Bill Hybels

To a young surf grom growing up just a few blocks from the beach in Corona del Mar in the 1960’s (see… 3,101 more words

Surfing

6/19/2018 Everyday Psychometrics: CDM/DCM

🌈EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation(5)factor scores

Using DCMs , which are often designed to be administered over only a portion of one class period and to be administered several times throughout a unit or course, it is critical that refinements of an existing or even a planned test be made possible in order to construct an “optimal” or at least a better test, namely shorter or more accurate or both.

35 more words
Everyday Psychometrics

6/15/2018 Everyday Psychometrics: attribute hierarchy

🌈EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation(5)factor scores

FIGURE 1 The expert-based attribute hierarchy and skill descriptors for the strand of Number: Develop number sense. 52 more words

Everyday Psychometrics

6/14/2018 Everyday Psychometrics: attribute hierarchy

🌈EFA in SPSS series: (1) PC extraction, (2) ML extraction, (3) orthogonal rotation, (4) oblique rotation(5)factor scores

The importance of correctly identifying the attribute hierarchy cannot be overstated—the first step in making inferences with the AHM depends on accurately identifying the psychological ordering of cognitive competencies required to solve test problems.

38 more words
Everyday Psychometrics