Ch1 Psychology Toolkit QCE Psychology Unit 3

Identify the last step of the scientific method from the options given below.

• Accept or reject the hypothesis.

• Test the conclusion.

• Analyse the data.

• Report the findings.

Marcia is investigating whether studying economics or studying maths nightly will have more effect on her daily maths quiz results. She will study only economics for the first week and only maths in the second week.

Identify the independent variable (IV) and the dependent variable (DV).

• IV: studying every night for two weeks; DV: academic results

• IV: academic results; DV: studying one week or not studying one week

• IV: studying economics or maths; DV: results on the daily maths quizzes

• IV: results on the maths daily quizzes; DV: studying economics or maths

Using the image above, identify the research design from the following options:

• independent groups design

• matched participants design

• repeated measures design

• stratified groups design

Descriptive statistics are statistical procedures that allow us to:

• interpret and draw conclusions from the data.

• manipulate the data to support your hypothesis.

• describe the properties of the data.

• prove or disprove a hypothesis.

The purpose of the control group in research is to:

• determine the effects of the dependent variable.

• eliminate the effects of the independent variable.

• eliminate the effects of the dependent variable.

• determine the effects of the independent variable.

Identify which of the following is not a measure of variability:

• median

• variance

• standard deviation

• range

Identify the mode in the following data set:

82, 89, 95, 102, 104, 107, 107, 107, 111, 118, 121, 129

• 82

• 111

• 104

• 107

The probability rate that psychologists are generally prepared to accept is a difference that is statistically significant is stated as:

• r≥ 0.03

• p≤ 0.03

• p≤ 0.05

• p≥ 0.05

What type of validity matches the following definition?

‘This examines whether the results gained from a measure are truly due to the variable that it is thought to be measuring.’

• content validity

• external validity

• internal validity

• construct validity

Participants in research have the right to refuse to take part in a study. There must not be any pressure to take part in a study. This participant right is called:

• deception in research.

• confidentiality.

• voluntary participation.

• withdrawal rights.