Imagine you are psychologist interested in understanding the well-being of the elderly. It is well known
that cognitive abilities decline with older age, and you begin to suspect there might be a relationship
between psychological wellbeing and cognitive function.
To explore this, you recruit 80 participants aged 70-90 years old and measure several different aspects
of cognitive function using standardised tests. Specifically, you measure:
General comprehension and semantic processing
Mental flexibility (i.e. the ability to switch between tasks)
Cognitive processing speed
Following these tests, you also give participants a questionnaire to measure their overall psychological
wellbeing. The aim of the study is to see whether the different measures of cognitive function are
associated with wellbeing scores.
You run a multiple regression and get the following output.
Which of the cognitive abilities contribute significantly to the model of wellbeing (tick all that apply)?
Select one or more:
None of them.