![]() ![]() ![]() Thirdly, they are very time consuming, typically taking well over an hour to administer, one-to-one, for each research participant. Such prohibitive costs may impede research in many developing countries, where very limited research funding is available ( Arnett, 2008). Secondly, they are very expensive to license, costing hundreds of dollars. Firstly, because of the multiple tests involved, substantial professional training is required to administer and score them (generally precluding their use in student research projects). However, commercially produced cognitive test batteries have drawbacks in some research contexts. Such batteries are highly developed, with good psychometric properties, standardized administration procedures, and extensive normative data. Or, many researchers opt to use commercial intelligence tests such as the Wechsler Intelligence Scale for Children ( WISC Wechsler, 2004). There are several batteries of tests that can be used for such purposes, such as the ABCD Battery, which includes the NIH Toolbox cognitive tests ( Luciana et al., 2018). This could be, for example, to compare groups who differ on some demographic factor or exposure to some experimental manipulation, or to examine correlations with grades, behaviour, or symptom scores etc. In psychological and educational research with adolescents there is frequently a need for assessment of cognitive ability. ![]()
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