Biological practical

• What is the main aim of the study?

  To investigate the relationship between height and aggression
• What does the study aim to correlate?

  Height and self-rating of aggressive tendencies
• What hypothesis was used in the study?


  A non-directional hypothesis was used
• What is the null hypothesis of the study?

  No correlation between height and aggression scores
• What sampling technique was used in the study?

  Opportunity sample of first-year students
• How many males participated in the study?

  4 males
• How many females participated in the study?

  15 females
• What questionnaire was used to measure aggression?

  Buss-Perry aggression questionnaire
• What were participants informed about before the study?

  They could withdraw at any time
• What was the mean height of participants?

  $172.4 \text{ cm}$
• What was the mean aggression score on the Buss-Perry questionnaire?

  $0.34$
• What was the range of heights in the study?

  23 cm
• What was the standard deviation of the height data?

  $6.70 \text{ cm}$
• What was the standard deviation of the aggression scores?

  $0.17$
• What does a two-tailed test imply in this study?

  It tests for correlation in both directions
• How does the study ensure reliability in measurements?

  Standardized instructions and consistent height measurement
• What could improve the generalizability of the study?

  Using stratified sampling for diverse representation
• What was a disadvantage of using an opportunity sample?

  Not proportional representation of the target population
• How were participants' heights measured?

  Shoes were removed for accurate measurement
• What is the significance level applied in the study?

  p < 0.05
• What does a critical value of rs indicate?

  It determines statistical significance of findings
• What does it mean if findings are statistically significant?

  Results are unlikely due to chance
• What is the implication of rejecting the null hypothesis?

  There is a correlation between height and aggression
• What could the findings suggest about aggression prediction?

  Height may be a predictor of aggression levels
• What are the main components of the study's procedure?

  • Correlational research method
  • Opportunity sampling of first-year students
  • Measurement of height and Buss-Perry questionnaire completion
  • Standardized instructions and informed consent
• What are the strengths and weaknesses of using an opportunity sample in this study?

  Strengths:

  • Quick and easy to gather participants
  • No bias in sample selection

  
  

  Weaknesses:

  • Not representative of the target population
  • Limited diversity in socioeconomic groups
• What factors could affect the reliability of the study's findings?

  • Standardized instructions for all participants
  • Consistent measurement of height
  • Time frame for completing the questionnaire
• What are the implications of the study's findings for aggression reduction?

  • Potential for predicting aggression levels
  • Understanding height's role in aggression