Competency 4: Assessment Flashcards
What is the measures of variability ?
used to describe the amount of spread. Two important measures of variability are the range and the standard deviation.
Define range?
is the simplest measure of variability. It is the GREATEST score minus the least score in a set of scores.
The range should have the same units as those of the data values from which it is computed.
T or F: A measure of variability takes into account all the scores is the standard deviation.
True!
What is the standard deviation?
is the measure of the dispersion of a set of data values about the mean of the data set
The _________ is used extensively in education, particularly with the normal curve and standardized tests.
standard deviation
What is percentile ?
is a value at or below which P percent of the data fall.
Ex- The median is the 50th percentile because 50% of the data falls at or below the median.
What are Quartiles?
values that divide an ordered data set into four portions, each containing approximately one-fourth of the data.
what are stanine scores ?
usually derived from percentiles and compare test performance using 9 intervals that are numbered in order from 1-9.
If a test measures what it purports to measure, the test has_______.
validity
What is a standardized test?
one that has been carefully constructed and field tested so that, ideally, it has a high degree of reliability and validity.
The most effective classroom assessment practices are those that are aligned directly with ___ and ______ and focus on student learning.
curriculum
instruction
Teachers should use a ___________ of assessment approaches.
variety
Teachers use assessment date to _________ instruction and/or provide intervention.
differentiate
What is a norm-referenced test?
is one that assesses students by comparing their performance to that of a norm group.
What is a norm group?
representative of students of the same age or grade level as the test takers.