Sentence examples for methods were rare from inspiring English sources

Previous surveys of inquiry-based learning in biology laboratory courses showed high percentages of courses incorporating inquiry but that open-ended experiments in which students are defining the research question and the research methods were rare (Brewer, 1998; Sundberg et al., 2005).

The use of established epidemiological methods is rare.

Laboratory comparisons to quantify errors resulting from chamber design, operation and flux calculation methods are rare.

Empirically, this hypothesis has not been established because findings based on quantitative methods are rare.

We consider our approach to be a promising contribution to nanoscale separation technology where scalable high-throughput methods are rare.

As both methods are rare, a wide range of questions and contradictions with regards to the processes that have acted on these boulders, remains.

But effective screening methods are rare and sometimes difficult to interpret.

Moreover, in vivo research studies evaluating the therapeutic response using highly specific and sensitive methods are rare.

Substantial research has been carried out on physical exposures in occupational settings, but scientific documentations obtained by objective measurement methods are rare [ 36].

In Ethiopia, studies conducted to explore the effect of parent and peer communication about SRH issues or contraceptive methods are rare.

Examples of interlocked hosts with the capability of sensing anions by electrochemical[ 5] or optical[ 3b, 4, 6] methods are rare.