Knowledge of Contraception Scale (Silva et al., 2007)

Knowledge on contraceptive methods in adolescents and young adults; 18 Items, Ages 13-24
  • Populations: Adolescents, Young Adults
  • Age ranges: 13-24
  • Languages: Brazilian Portuguese
  • Countries: Brazil

Items

Item Descriptions:

  • what are contraceptive methods 
  • use of IUD, conventional contraceptive pill, female condom, male condom and diaphragm
  • correct ways to use male condoms
  • use, indication and prevention of IUD
  • time elapsed for the effectiveness of the contraceptive pill
  • effective use of contraceptive pill
  • efficacy and use of diaphragm
  • use of the chart
  • what coitus interruptus consists of, its efficacy and consequences for sexual intercourse, 
  • form, effectiveness and use of the female condom) had the highest percentage of correct answers, overall (81%). 
  • use of morning-after pill)
  • use and action of vaginal contraceptives
  • consequences of surgical methods other than vasectomy and tubal ligation
  • breastfeeding as a contraceptive method
  • efficacy of pill, IUD, condom and injectable contraceptive
  • occurrence of pregnancy due to some conditions such as virginity, use of douches, among others and use of female condom
  • use of contraceptive pills, vaginal sponges, calendar method and IUD
  • safety index of contraceptive methods

Scoring

Not Reported

Citations

Silva, Nancy Capretz Batista da, Bomfim, T., Cardozo, N. P., Franco, M. A. P., & Marques, S. L. (2007). Proposta de instrumento para avaliar conhecimento de jovens sobre métodos contraceptivos. Paidéia Cadernos De Psicologia e Educação, 17(38), 365-374. https://doi.org/10.1590/S0103-863X2007000300007

Team comments

Please be aware that this measure was not reported with an exact name, and that the title provided here is for reference only.  See (Silva et al., 2007) for further information.

Scoring breakdown

Measure development

  • Significant design input from young people
  • Cognitive interviews with young people
  • Expert input

Validity

  • Green: Face validity
  • Unknown: Convergent validity
  • Unknown: Construct validity

Reliability

  • Unknown: Internal consistency
  • Unknown: Test-retest

Ease of use

  • Unknown: Readability

Definitions

Face validity: How well a measure appears to represent the construct it is supposed to be measuring.

Convergent validity: How well a measure correlates with other hypothetically-related measures.

Construct validity: The extent to which a measure reflects the construct it was designed to evaluate.

Internal consistency: The extent to which items in a scale capture aspects of the same construct.

Test-retest: The degree to which measurement scores are consistent over a short period of time (usually 2 weeks).

Readability: The ease with which a reader can understand the questionnaire items.

Key

  • Green: Meets validation criteria
  • Red: Does not meet validation criteria
  • Unknown: Evidence not available

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