Response rates cannot be maximised by clear and pleasing visual presentation.

Self-generated validity occurs when, in response to your questions, the respondent generates answers about a construct or topic for which they had prior knowledge or about which they had views.

Questionnaires administered using the telephone are known as telephone questionnaires.

The design of your questionnaire will affect the response rate and the validity and reliability of the data you collect.

To relate your findings to earlier research the sample doesn’t need to be as representative as possible.

An independent variable that transmits the effect of an independent variable to a dependent variable.

To relate your findings to earlier research the sample doesn’t need to be as accurate as possible.

A dependent variable that may change in response to changes or manipulations in other independent variables.

In relation to questionnaires, ecological validity refers to whether the questions actually measure an attitude or behaviour that cannot be generalised to and reflect realistic real-life situations.

Face-to-face questionnaires, refers to those questionnaires where the researcher or a research assistant physically meet respondents and ask the questions face-to-face.