Unit 1 - AOS3 - Research Methods.... Flashcards

Question

Qualitative vs Quantitative

Answer 1

A

Investigates cause and effect relationship between 2 or more variables, by manipulating one variable and observing impact on other variable(s).

Neither article involves a controlled experiment, as they are both investigating any type of relationships and associations between variables, rather then a direct, cause-and effect relationship

Answer 2

A

Condition that is manipulated by researcher to study the effect on another variable.

eg. Neither study involves an IV, as this term does not apply to correlational studies- a variable of interest in both studies is screen time exposure

Answer 3

A

A variable that is measured to identify the impact of the manipulaton of the independent variable, on the participant’s behaviour.

Eg. neither study involves a dependent variable either, as this also does not apply to correlational studies.
Article 1 - measures parent-child talk (adult words, child vocalisations and parent-child interactions) through LENA
Article 2 measures a child’s score on an online vocabulary assessment, and at age 5, score on a laboratory run vocabulary assessment

Answer 4

A

Testable prediction about likely outcome of experiment. In this instance it contains:
- the population of interest
- the co-variables involved
- a directional prediction about the interaction between those variables

Article 1: It is hypothesised that a negative correlation exists between amount of screen time exposure and recorded quantity of parent-child talk, over a period of 3 years, in Australian children.

Article 2: It is hypothesised that a negative correlation exists between amount of screen time exposure and scores on vocabulary tests, over a period of 4 years, in Swedish children.