What is standard score on Woodcock-Johnson?

What is standard score on Woodcock-Johnson?

100
A. The standard score (SS) on the WJ-III describes a client’s performance relative to the average performance of the com- parison group. The scale is the same as the IQ test. In other words, the average standard score is 100 with a standard deviation of 15.

How do you read the Woodcock-Johnson score?

Standard Scores on the WJ-IV ACH can be interpreted in the following manner:

1. 131 and above = Very Superior.
2. 121 to 130 = Superior.
3. 111 to 120 = High Average.
4. 90 to 110 = Average.
5. 80 to 89 = Low Average.
6. 70 to 79 = Low.
7. 69 and below = Very Low.

What is RPI on Woodcock-Johnson?

RELATIVE PROFICIENCY INDEXES (RPI) show the examinee’s level of proficiency (accuracy, speed, or whatever is measured by the test) at the level at which peers are 90% proficient. An RPI of 75/90 would mean that the examinee was only 75% proficient at the same difficulty level at which peers were 90% proficient.

What is W score Woodcock-Johnson IV?

The reference W is the criterion—the score against which an individual’s W ability is compared. The reference W represents the difficulty level of a hypothetical item to which 50% of the age or grade group would respond correctly.

What is a normal standard score?

It is also known as a standard score, because it allows comparison of scores on different kinds of variables by standardizing the distribution. A standard normal distribution (SND) is a normally shaped distribution with a mean of 0 and a standard deviation (SD) of 1 (see Fig. 1).

How do you find the standard score in statistics?

As the formula shows, the standard score is simply the score, minus the mean score, divided by the standard deviation.

What is the Woodcock-Johnson psychoeducational battery?

The Woodcock-Johnson Psycho-Educational Battery-Revised is a set of tests designed to measure cognitive abilities, scholastic aptitude, and achievement in the areas of reading, mathematics, and written language, in individuals aged 2-95 years.

WOODCOCK-JOHNSON PSYCHOEDUCATIONAL BATTERY: “The Woodcock-Johnson Psychoeducational Battery assesses mental capacity in children and young adults. ”

What does the Woodcock Johnson test measure?

They additionally evaluate fundamental abilities in each of these regions and the degree of employment of those abilities by the individual being evaluated. WOODCOCK-JOHNSON PSYCHOEDUCATIONAL BATTERY: “The Woodcock-Johnson Psychoeducational Battery assesses mental capacity in children and young adults.

What is the average standard score on the WJ IV?

Standard Score. The standard score (SS) on the WJ-IV describes a child’s performance relative to the average performance of the comparison group. The scale is the same as the IQ test. In other words, the average standard score is 100 with a standard deviation of 15.

What batteries are included in the WJ IV cog tests?

The WJ IV COG tests are included in two batteries: the Standard Battery (Tests 1–10) and the Extended Battery (Tests 11–18) ( Mather & Wendling, 2014b ). The WJ IV offers the flexibility for examiners to use the Standard Battery alone or in conjunction with the Extended Battery.