The ordering of the behavioral statement slides was pseudo-randomized in each presentation by (1) using a freely-available, online number randomizer to "shuffle" the presentation of the 39 statements from their original ordering (as seen on Appendices B and C) and (2) examining each presentation to correct for (a) any instances of back-to-back negative statements throughout each presentation (in anticipation of a possible heightened cumulative effect) and (b) presentations beginning or ending with a negative statement (in anticipation of possible primacy or recency effects).
The TLCHD database was exported into an Excel spreadsheet and subjected to a "research randomizer" to select a potential sampling pool of 150 license numbers.
The participants were randomly assigned to three balanced experimental conditions via the online software Research Randomizer. The headphones were put on and the participants were instructed to remain as still as possible in order to keep a distance of 60cm from the center of the computer screen.
As amostras das vozes dos professores enviadas para cada avaliadora foram previamente randomizadas de maneira simples por meio do programa Research Randomizer, para que ocorresse cegamento pre e pos-intervencao e 20% das gravacoes foram replicadas para calculo da concordancia interna das avaliadoras.
In addition to providing definitions of terms and requirements attributes, a sequence randomizer was implemented providing random pairwise comparisons for each survey to ensure unbiased and impartial results.
Thirty subjects have been selected and were randomized with the support of Research Randomizer Software [25] in 2 groups (PT and BBT groups); each group consisted of 15 subjects.