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Slosson Intelligence Test

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Slosson Intelligence Test

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  1. Slosson Intelligence Test What? Why? How?

  2. Overview • IQ test • SIT-R uses calibrated norms for ages 4 to adult • Good diagnostic tool to identify students needing further evaluation. • Student candidates for testing

  3. Intended Purpose of Slosson • SIT-R is intended to be a screening test of intelligence specifically measuring the verbal intelligence factor. • Six domains include: vocabulary, general information, similarities and differences, comprehension, quantitative, reasoning, auditory memory.

  4. SIT-R Model Crystallized Intelligence Memory Verbal Quantitative Vocabulary Quantitative Auditory General information Memory Similarities and Differences Comprehension

  5. Vocabulary (VO) • Ability to use, understand and define words orally. • Age 7 sample question, “What does dangerous mean?”

  6. General Information (GI) • Reflects the learning of cultural knowledge, much or which is not explicitly or directly taught. • Age 7 sample question, “What is paper made of?”

  7. Similarities and Differences (SD) • This cognitive area reflects one’s skill in determining common attributes of two dissimilar things or concepts and also some uncommon attributes. • Age 7 sample question, “How are an airplane and a balloon the same? How are an airplane and a balloon different?”

  8. Comprehension (CO) • Reflects one’s knowledge of social behavior, “common sense” and ability to interpret sayings and proverbs. • Age 8 sample question, “Why do we need to cook some food before we eat it?”

  9. Quantitative (QN) • Reflects ability to do mental calculations, remember the essential numbers, determine the arithmetic process required, and calculate the correct answer. • Age 7 sample question, “Jim had six marbles and he got two more. How many does he have altogether?”

  10. Auditory Memory (AM) • Reflects one’s ability to remember and repeat correctly a random series of digits, both forward and backwards, and several sentences. • Age 7 sample, “Say these numbers backwards: 4, 7, 3.”

  11. Question Validity • Proven reliable test: Uses same kinds of items accepted on other cognitive aptitude tests. Example - The Binet. • Examples of every domain (GI, VO, etc.) found at least once out of every ten questions.

  12. Reliability • Test score components: True score variance, item specific variance and error. • Estimating reliability are attempts to demonstrate the consistency with which test items measure some common factors-No test is 100% accurate! • Standard error of measure: 10 points.

  13. Slosson Instruction • Individual test form • Helpful checklists for administrators • Note: #s 2, 6, 11, 19, 25 • Underline key words for # 1 - 25 • Chronological age of student – Page 8 • Individual test form activity- 15 minutes • Reference pages: 32 – 39 ages 16+ • Sample copy of Total standard score – page 34

  14. Total Standard Scores • Scoring tables: Using the extreme right or left column of individual’s raw score, locate column that describes his/her age. • Basal Item: Question number at which the student answers ten consecutive questions – refer to page 8. • Total number: Questions correct after Basal Item. • Correct questions after basal =s raw score. • Ceiling Item: Last correct item.

  15. Test Results • Chronological age (CA) + Raw Score = Total Standard Score (TSS) - Table A • Mean age equivalent (MAE) - Table B • T-Score – Table C • Normal Curve Equivalent (NCE) - TSS Score NCE found in Table C • Stanine Category – Table C • Percentile Ranking – Table C • Confidence Interval – Table D

  16. Giving the Test • Read questions exactly as written. • Mark the answer sheet 0 for incorrect and 1 for correct. • Once the student has answered 10 consecutive questions incorrectly, they have completed the test.

  17. Closure • Questions • Comments • Ah-Ha Moments