Are They Really Sloppy?: A Comparative Analysis of Student Performance in the Laboratory

Kovacs-Hadady, K.; Fábián, István

doi:10.1021/ed073p461

Cited by 4 publications

(3 citation statements)

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“…The use of this newer TLC technique is the topic of a number of papers (137)(138)(139)(140). These should be consulted to learn the important details of carrying out ion-pair reversed-phase TLC separations.…”

Section: Hydrophobic Modified Phases (Rp Phases)mentioning

confidence: 99%

Sorbents and Precoated Layers in Thin-Layer Chromatography

Rabel¹

2003

Handbook of Thin-Layer Chromatography

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Section: Hydrophobic Modified Phases (Rp Phases)mentioning

confidence: 99%

Sorbents and Precoated Layers in Thin-Layer Chromatography

Rabel¹

2003

Handbook of Thin-Layer Chromatography

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“…In the face of these many pedagogical efforts to raise the level of students' laboratory technique, an article in this Journal questioned whether introductory college chemistry students actually need to improve their manipulative skills (65). A group of freshman biology students were given the task of determining the amount of fluoride in dental tablets by potentiometric titration.…”

Section: Combining Physical Practice With Mental Practicementioning

confidence: 99%

Teaching Chemical Technique. A Review of the Literature

DeMeo¹

2001

J. Chem. Educ.

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The purpose of this study was to determine through a historical review of the literature some of the most effective ways to teach manipulative skills in chemistry. I reviewed chemical education journals, laboratory manuals, early American chemistry textbooks, analytical chemistry texts, and science education textbooks and journals that have to do with instructional methods of teaching laboratory technique in the chemistry laboratory from the mid-1800s to the present. Both anecdotal and research-based findings suggest that while it may be difficult to choose the "best" method to improve students' manipulative skills, it is clear that videos can be useful media to promote skill acquisition. Using videotapes, videodiscs, CD-ROMs, and the Internet can have several advantages, such as the ability to be edited, copied, and viewed multiple times. The review of the literature also strongly suggests that some sort of mental preparation combined with physical practice can beneficially affect students' laboratory skills. Mental preparation in the form of questions, summaries, or imaginary practice is cost effective and places minimal demands on the instructor. Using verbal behavior that encourages and is responsive to the student during these prelab sessions could be very effective in promoting psychomotor skills. Lastly, feedback seems to be a key component in mastering a skill. Although not widely validated by empirical studies in the chemical education literature, feedback has been shown to improve the learning of procedural knowledge.

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“…In particular, knowledge about comparisons between experimental data, which are increasingly used in analytical laboratories to find out whether there are significant differences between techniques, is useful. This Journal has published several articles dealing with general statistical experiments (2), statistical studies by computer simulation (3), direct comparison of experimental data (4,5), comparison of relative standard deviation values (6), and statistical comparisons using different tests (confidence intervals, contrast of hypothesis, normal distribution, and t, Q, F, χ 2 tests; ref [7][8][9][10][11][12][13][14].…”

mentioning

confidence: 99%

A Didactic Experience of Statistical Analysis for the Determination of Glycine in a Nonaqueous Medium Using ANOVA and a Computer Program

Santos-Delgado

Larrea-Tarruella

2004

J. Chem. Educ.

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This article describes the statistical comparison of two back-titration methods for the determination of glycine in a glacial HAc medium. The titration is carried out using perchloric acid. The glycine quantities obtained were determined by several groups of students on the same day (three groups a day, on average; a total of 32 groups during the academic year) and were compared by two-way ANOVA with the Statgraphics Plus 3.0 computer program. The laboratory exercise discussed in this article is recommended for fourth-year undergraduates.

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Are They Really Sloppy?: A Comparative Analysis of Student Performance in the Laboratory

Cited by 4 publications

References 0 publications

Sorbents and Precoated Layers in Thin-Layer Chromatography

Sorbents and Precoated Layers in Thin-Layer Chromatography

Teaching Chemical Technique. A Review of the Literature

A Didactic Experience of Statistical Analysis for the Determination of Glycine in a Nonaqueous Medium Using ANOVA and a Computer Program

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