3. What findings were reported Archives

Comprehensive answer (in my own words)

Which article I read: a 2024 systematic review and meta-analysis examining whether Wechsler intelligence scales predict academic achievement in children with ADHD or autism spectrum disorder (Marinopoulou et al., 2024). PubMed+1

Why the study was conducted / hypotheses tested
The authors carried out the review because clinicians and researchers often use Wechsler scales (e.g., WISC) in assessments of children with ADHD or ASD, yet it remained unclear how well those test scores actually predict school-related outcomes in these clinical groups. The implicit hypotheses were that (a) Wechsler-derived indices (general IQ and specific indices such as working memory and processing speed) would show meaningful relationships with academic achievement in these populations, and (b) predictive strength might vary across indices and diagnostic groups. The review aimed to collect and synthesize existing studies to test those ideas. PubMed+1

What test(s) were used
Across the studies included in the review, the primary instruments were Wechsler intelligence scales (typical examples: WISC variants for school-age children; other Wechsler batteries where applicable). The review examined relations between the Wechsler global scores and subtest/index scores (e.g., Full Scale IQ, Working Memory Index, Processing Speed Index) and measures of academic achievement reported in each study. DIVA Portal

What findings were reported

Overall, the review found that Wechsler scales have value in predicting academic achievement among children with ADHD or ASD: general intelligence indices were generally positively associated with school outcomes. PubMed+1

Some specific cognitive indices (notably working memory and processing speed) were highlighted as particularly relevant to academic difficulties in these groups; these subcomponents can help explain variance in achievement beyond a simple full-scale IQ. PubMed+1

The authors also reported limitations in the literature: relatively small or heterogeneous samples (especially for ASD), varying study designs and achievement measures, and inconsistent reporting made pooled estimates less precise. DIVA Portal

What conclusions were drawn Wechsler Predicts Achievement

The review concluded that Wechsler instruments are useful tools for clinicians and educators when predicting academic outcomes in children with ADHD or ASD, but their predictive power is not absolute and must be interpreted in context (e.g., considering motivation, comorbidities, classroom supports). PubMed+1

The authors recommended that practitioners pay attention to specific index scores (working memory, processing speed) because these can suggest targeted interventions, and they called for more high-quality, larger-sample longitudinal research—especially in ASD—to clarify effect sizes and causal links. DIVA Portal+1

Intelligence Predicts Grades

Find and read a peer-reviewed research journal article using intelligence or achievement testing in research and share what you learned from this article with your classmates. Specifically (and in your own words):

1. Why was the study conducted? What hypotheses were being tested?,

2. What test(s) were used?,

3. What findings were reported, and what conclusions were drawn,

Why was the study conducted and what were its hypotheses?,
Which intelligence tests were used?
What findings were reported?
What conclusions did the researchers draw?
What implications does the study have for practice?

Intelligence Predicts Grades

✅ Comprehensive Answer:

1. Why the study was conducted & hypotheses:
Researchers Gygi et al. examined how well four commonly used intelligence tests—the IDS, RIAS, SON‑R 6‑40, and WISC‑IV—predict later academic performance in children en.wikipedia.org+8frontiersin.org+8pubmed.ncbi.nlm.nih.gov+8. The hypothesis: all four tests would significantly forecast overall school grades three years later, and that specific tests would be better predictors in subjects like math and language.

2. Tests Used:

IDS (Intelligence and Development Scales): a fluid-intelligence test for ages 5–10.
RIAS (Reynolds Intellectual Assessment Scales): measures both verbal and nonverbal intelligence for ages 3–90+.
SON‑R 6‑40: nonverbal test for fluid intelligence, ages 6–40.
WISC‑IV (Wechsler Intelligence Scale for Children, Fourth Edition): global IQ assessment for ages 6–16 frontiersin.org+1pubmed.ncbi.nlm.nih.gov+1.

3. Findings Reported:

All four tests predicted average school grades over three years.
IDS and RIAS scores were significant predictors of both math and language grades.
SON‑R 6‑40 specifically predicted math performance.
WISC‑IV did not predict math or language grades individually—only the composite grades frontiersin.org+1pubmed.ncbi.nlm.nih.gov+1.

Intelligence Predicts Grades

4. Conclusions Drawn:
The study concluded that intelligence test scores do offer valid predictive insight into later academic achievement, particularly when averaged across subjects. However, the effectiveness differs depending on the test and the discipline: IDS and RIAS had stronger subject-level predictive power, while WISC‑IV was less precise in forecasting specific subject outcomes researchgate.net+8frontiersin.org+8pubmed.ncbi.nlm.nih.gov+8. The authors did caution that the small sample size (n=54 at follow-up) limits the generalizability of their conclusions.

5. Practice Implications:
For practitioners, the results suggest choosing intelligence tests aligned with the desired predictive outcome. If anticipating performance in particular areas like math or language, IDS or RIAS may be more accurate. In educational planning or early intervention, test selection matters. The study also highlights the need to combine IQ data with other factors—motivation, learning environment, working memory—to better understand academic trajectories.

📌 Summary:

This longitudinal study supports using intelligence tests to help forecast academic achievement, with IDS and RIAS showing stronger subject-specific accuracy. However, small sample size and test design nuances limit definitive conclusions. For practical use, IQ testing is valuable—but should be paired with broader

Tag Archives: 3. What findings were reported

Wechsler Predicts Achievement

Comprehensive answer (in my own words)

Intelligence Predicts Grades

✅ Comprehensive Answer:

📌 Summary: