WAIS Scoring

Introduction

• The speaker expresses feelings of being startled yet happy and hopeful for upcoming fall activities.

Overview of Assessment Processes

• Importance of flow in conducting tests and assessments.

  • Maintaining standardization is crucial for obtaining reliable and valued results.

Standardization Importance

• Ensures that assessments yield consistent results that can be trusted.

Test Administration and Steps

• Discussion on how administrators can maintain consistency throughout the test-taking process.

  • Steps for transferring and calculating scores:

  • Once raw scores for success are calculated, transfer these raw scores.

  • Convert raw scores to scaled scores as demonstrated in a provided list.

  • Calculate the sum of scaled scores, excluding scores in parentheses.

Full Scale IQ (FSIQ) Calculation

• Reminder to exclude certain digits in FSIQ calculations:

  • Specifically, exclude digit four from the calculation.

• For example, consider the Verbal Comprehension Index (VCI) scores:

  • Similarities score = 15

  • Vocabulary score = 9

  • Noted that the difference between 15 and 9 is more than five, indicating unusual scatter between scores.

Scatter and Standard Deviation Guidelines

• The scatter must be less than 1.5 standard deviations to be considered acceptable.

Interpretation of Zero Raw Scores

• A raw score of zero does not indicate inability but rather that the test may not match the individual’s abilities.

  • The administrator should seek a more suitable test for assessment.

Scaled Score Substitutions

• One substitution is allowed for calculating FSIQ:

  • Provisional scoring is available for the pest IQ and the non-motor index.

  • Cannot combine substitution with proration in the same calculation.

• Updates now allow for the use of various scores if subtests are missed:

  • If 6 out of 7 subtests are complete for FSIQ, alternatives can be pursued.

Scoring Options with Spike Methodology

• Explanation of scoring flexibility even when zero scores are present:

  • While best practice recommends retesting, options exist if testing cannot be done again.

  • Index scores can utilize data from subtests with one zero score allowed per index score (each index requires two subjects).

  • If an index score requires four subtests, it can accommodate two zero scores.

  • For General Ability Index (GAI) and other scores requiring five subtests, up to three scores of zero are permissible.

  • For FSIQ and nonmotor index scores, up to four zeros can still yield a valid score.

Limits on Zero Scores

• If the zeros exceed allowed limits, the respective index scores should not be derived:

  • Example scenarios include:

  • If five zeros are present, the FSIQ should not be calculated.

  • If four zeros are present during GAI computation, GAI should not be calculated.

Calculating Index Scores

• Once the calculations are complete, differences between index scores should be analyzed.

• Critical values are shared during calculation exercises:

  • Example critical value noted as 25.05 and subsequent detailed calculations.

Conclusion

• Speaker calls for group participation regarding specific values calculated,

  • Looking for agreement on values and differences derived from calculations, fostering a collaborative learning environment.