A Developmental Psychologist Developed a Training Program to Encourage Children

question 9

Multiple Choice

A developmental psychologist developed a training program to encourage children to reduce their Internet usage.To examine its efficacy he recruited a sample of 120 children - of whom 60 were aged 11 years and 60 were aged 13.Half of the participants were randomly assigned to the training program and the amount of online usage was measured after one month.Findings were subjected to two-way ANOVA, from which the output was as follows: Which of the following is a fair summary of the results?

• A)There is a main effect for condition.
• B)There is a minor effect for condition.
• C)There is a partial effect for condition.
• D)There is a main effect for condition and a minor effect for training program.
• E)There is an interaction effect for error.

---

Definitions:

Longitudinal Studies

Research methods that involve observing the same subjects over a period of time, often years or decades.

Biased Sample

A subset of a population selected in a manner where some members of the intended population are less likely to be included than others, potentially leading to skewed outcomes.

Longitudinal Design

A research method in which data is gathered for the same subjects repeatedly over a period of time to observe changes and development.

Inexpensive

Not costing a lot of money; affordable.