Question

What’s the advantage of standardized scores over raw scores?

Answer #1

the usefulness of standard score results (such as correlations and standardized regression coefficients) to that of raw scores results (such as covariances and raw score regression coefficients).

First, reporting standardized coefficients allows recognition of causal relationships that replicate across studies, facilitating meta‐analysis.

Second, an analysis with standardized coefficients allows the researcher to determine which of the predictor variables has the largest relative impact on the criterion variable. The implications of these 2 standardized score advantages are demonstrated with examples.

When Breaking Down Standardized Assessment Scores in
Counseling
Does it make sense why we convert raw scores to standard scores?
How does this help us make sense of scores? Discuss how this
applies to assessment tools that you have reviewed in
counseling.

1.What percentage of standardized test scores is between405 and
625 if
A certain standardized test's math scores have a bell-shaped
distribution with a mean of 515 and standard deviation of 110
complete parts a

A certain standardized test's math scores have a bell-shaped
distribution with a mean of 525 and a standard deviation of 110.
Complete parts (a) through (c). (a) What percentage of
standardized test scores is between 195 and 855? (b) What
percentage of standardized test scores is less than 195 or greater
than 855? (c) What percentage of standardized test scores is
greater than 745?

Fill in the blanks with the appropriate raw scores,
z-scores, or T-scores for the following normal
distribution with a mean of 50 and SD of 5.
Raw
Score z-
Score T-
Score
Student
A 35 _______ _______
Student
B ________ +
1.2 _______
Student
C ________ ________ 35

A certain standardized test's math scores have a bell-shaped
distribution with a mean of 515 and a standard deviation of 105.
Complete parts (a) through (c). (a) What percentage of
standardized test scores is between 410 and 620? (Round to one
decimal place as needed.(b) What percentage of standardized test
scores is less than 410 or greater than 620? nothing% (Round to
one decimal place as needed.) (c) What percentage of standardized
test scores is greater than 725? nothing% (Round...

Why would you want to work with z scores rather than raw scores?
What is the primary purpose of standard scores?

a population of scores with μ=73 and σ=6 is standardized to
create a new population with μ=50 and σ=10. What is the new value
for each of the following scores from the original population ?
scores: 67,70,79,82

11) A certain standardized test has scores which range from 0 to
500, with decimal scores possible. Scores on the exam are normally
distributed with a mean of 312 and a standard deviation of 50.
What proportion of students taking the exam receive a score that
is within 64 points of the mean?
Round your answer to 4 decimal places.

6) A certain standardized test has scores which range from 0 to
500, with decimal scores possible. Scores on the exam are normally
distributed with a mean of 304 and a standard deviation of 42.
What proportion of students taking the exam receive a score that
is within 74 points of the mean?
Round your answer to 4 decimal places.

The scores on one portion of a standardized test are
approximately Normally distributed, N(572, 51).
a. Use the 68-95-99.7 rule to estimate the range of scores that
includes the middle 95% of these test scores.
b. Use technology to estimate the range of scores that includes
the middle 90% of these test scores.

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