Skip to content

Course home

Scientific processes

Scientific processes

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365
Question 38

Study Description

A researcher wanted to investigate whether task concentration is affected by the volume of background office noise (low volume vs. high volume).

The researcher required a stratified sample of 30 participants. They obtained this sample from a technology startup employing 90 software engineers and 60 marketing staff.

Participants were asked to complete a complex coding-deciphering task on a computer. Individual performance was measured by counting the number of errors made during a 10-minute session.

There were two conditions in the study, Condition A and Condition B:

  • Condition A: 15 participants completed the task with low background noise (30 dB).
  • Condition B: the other 15 participants completed the task with high background noise (75 dB).

Explain how the researcher would have obtained the software engineers for their stratified sample. Show your calculations.

[3]
Markscheme

Scientific processes Questions

  1. A Level
  2. /Psychology
  3. /Scientific processes

689 exam-style questions on AQA A Level Psychology Scientific processes. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank