實作研究活動：练习题

When planning practical activities such as an observation in a public park, which of the following is a primary requirement for the researcher according to the OCR specification?

When reflecting on practical activities involving an observation, a student realizes that their presence may have caused demand characteristics. How does this affect the objectivity of the research?

During practical activities, students are often required to manage risk assessment. Which of the following best describes the purpose of a risk assessment in psychological research?

A student is reflecting on their practical activity involving a correlation. They find a coefficient of \( r = +0.85 \). In their research portfolio, how should they best justify the quantifiable measurements used?

During a student-led study on memory, a researcher identifies that the participant variables (such as individual IQ) might significantly affect the scores on a word-recall task. To minimize this effect while using different people in each condition, they pair participants based on their baseline memory scores before assigning one from each pair to Condition A and the other to Condition B. Which experimental design is being implemented?

During a practical activity involving an observation of social distancing, a student decides to use time sampling. Describe one way this sampling technique might limit the validity of the data collected compared to event sampling.

During their practical activities, a student conducts a self-report study using a Semantic differential rating scale. Explain how this scale is constructed and why it might provide more detailed data than a simple Likert rating scale.

During practical activities, students must manage risk assessment. Explain how the ethical principle of responsibility, specifically the protection of participants, is operationalised during the planning phase of a high-stress experiment.