Five steps continuous cycle Identify question form hyp guess choose research

Five steps continuous cycle identify question form

This preview shows page 2 - 5 out of 54 pages.

Five steps (continuous cycle): Identify question→ form hyp (guess)→ choose research method and design→ collect and analyze data→ draw conclusions Criteria for scientific research - Validity- accuracy (truthfulness of measure) - Reliability- consistency (results on one occasion similar to results on another) Research methods (strategy to collect data) 1) Non-experimental methods→ no control of intervention, observation of the effects in nature 2) Experimental methods→ control of intervention, independent variable, dependent variables Research designs 1) Cross sectional→ data collected on single occasion, yield correlation coefficient 2) longitudinal → data collected over time, same group of participants, can determine cause and effect January 11th, 2018 Lecture 2 Biological Functions Review Question: which of the following is NOT a characteristic of emerging adulthood? Answer: Self Determination Thinking About Puberty Definition of Puberty - Comes from latin word ‘pubescere’ - Refers to changes in 1) physiology 2) anatomy
Image of page 2

Subscribe to view the full document.

3) Physical functioning 4) Physical appearance - Prepares body for sexual functioning The endocrine system - Diff stages for diff people - Made up up glands in diff locations of the body - Hormone releasing glands→ pituitary, thyroid, adrenal, gonads/sex glands - hypothalamus→ control physio and psyc functioning (master gland)- controls release and production of hormones in other glands - GnRH→ releases in pulses of intervals of 2 hrs that begins in middle childhood (2 years before puberty) - Leptin→ produced by fat cells (the more we have- more released) and is the driving force behind puberty - As leptin increases in crosses threshold that triggers release of GnRH in hypothalamus - pituitary→ triggered by leptin and releases gonadotropins (FSH & LH) and produces gamete cells in females and testes in males which then produce sex hormones - Sex hormones→ estrogen (estradiol) & androgens (testosterone) - Adrenal gland→ produces ACTH HPG Feedback Loop - Begins in infancy - Like a thermostat Growth Spurt - Biological change - Rapid changes - height, weight, muscle, fat (body composition) - Age of two and up- children grow at rate of 5cm per year. Increased with puberty bc of sex hormones in adolescence - Girls start growth spurt about two years before boys - Girls reach peak height velocity earlier than boys→ the max speed in growth and comes about two years after growth spurt- last for couple months, where girls gain 8 cm per year and boys 9 cm - 11-13 years - girls taller than boys - Girls reach peak at 15 and boys at 17 - Not all parts of the body grow at the same pace - Asynchronicity in growth - feet , hands and head grow the fastest - Muscle growth- boys greater bc of testosterone
Image of page 3
- Weight of heart doubles - heart rate falls (boys grow more than girls- fall to lower level- exceed more in sports) Primary Sex characteristics - Reproductive organs mature - Ovaries produce egg cells or ova - (400,000 immature eggs in ovaries- by the time puberty hits - decreases to 80,000) - Only 400 released (ovulation) - First menstrual period→ menarche -
Image of page 4

Subscribe to view the full document.

Image of page 5
  • Winter '16
  • Jenny Glozman

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes