Sentence examples for stem equivalent from inspiring English sources

The data in [ 6] are represented here as SS (Single Stem equivalent to days after planting, DAP) and CC1 (Coppice Cycle 1 equivalent to days after coppice, DAC).

The D-arm stem equivalent (the base-paired region in the 5' arm of the cloverleaf) is 5 bp long (normally 3-4 bp in tRNAs), while the T-loop equivalent is 8 bases long (usually 7 bases in tRNAs).

All the comparisons were based on 31 stem-equivalent structure items and 8 stem-equivalent reading items answered by the three groups.

The main study also investigated how the test takers' responses varied between the two tests they took, the first in the constructed response, short answer format and the second using stem-equivalent multiple choice items.

The overall study from which findings are presented gave stem-equivalent short answer and multiple choice tests of English structure and reading to students at Prince of Songkla University, Thailand.

The study looked particularly at differences between the performance of stem-equivalent items in the constructed response, short answer format and multiple choice items with 3- 4- or 5-options.

The issue was also dealt with in a study in Japan by Shizuka, Takeuchi, Yashima and Yoshizawa ([2006]) which compared the performance of two groups of test takers in two tests based on stem-equivalent 3- and 4-option items derived from the English section of a university entrance examination.

The section of the study described here addressed the effect of using 3-, 4- and 5-option items and investigated if there were significant differences in the validity, reliability, difficulty, and discrimination ability of stem-equivalent items associated with differing numbers of options.

However, the difference is not great: in a meta-analysis, Rodriguez found a correlation across 21 studies of 0.92 for stem-equivalent items and 0.85 across 35 studies for non-stem-equivalent items.

There is indeed evidence that stem-equivalent items tend to behave similarly, irrespective of whether the item is phrased as an open-ended question or in MCQ format.

In general correlations between the two formats are higher when the questions in each format are specifically designed to be similar (stem-equivalent), and lower where the items in the two formats differ.