What does it mean to operationalise a variable?

To define it in precise, measurable terms

A Type 1 error is best described as:

A false positive, accepting an effect that is not real

To trial the procedure and materials before the main study

Act as a quality-control filter before publication

It can in principle be shown to be false by data

12questions. Pick an answer and you'll see why right away.

Which research method is the only one that can establish cause and effect?
A study tests the same participants in two conditions. Which experimental design is this?
What does it mean to operationalise a variable?
Which sampling method selects subgroups in proportion to the population?
Which inferential test suits ordinal data from an unrelated (independent groups) design testing a difference?
For which two tests must the calculated value be equal to or greater than the critical value to be significant?
A Type 1 error is best described as:
Which measure of central tendency can be used with nominal data?
What is the purpose of a pilot study?
Which section of a psychological report contains the standardised steps needed to replicate the study?
Peer review in psychology mainly serves to:
A hypothesis is falsifiable when: