The effect of watching lecture videos at 2x speed on memory retention performance of medical students: An experimental study

Kıyak Y. S., Budakoğlu I. İ., Masters K., Coşkun Ö.

MEDICAL TEACHER, cilt.45, sa.8, ss.913-917, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 45 Sayı: 8
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1080/0142159x.2023.2189537
  • Dergi Adı: MEDICAL TEACHER
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, ASSIA, CINAHL, EBSCO Education Source, Educational research abstracts (ERA), ERIC (Education Resources Information Center), Public Affairs Index
  • Sayfa Sayıları: ss.913-917
  • Anahtar Kelimeler: Video speed, playback speed, accelerated playback, lecture videos, medical students
  • Gazi Üniversitesi Adresli: Evet

Özet

AimThis study aimed to determine how watching lecture videos at 1x and 2x speeds affects memory retention in medical students.MethodsA posttest-only experimental design was utilized. The participants were 60 Year-1 and Year-2 medical students. The participants were assigned to one of two groups through stratified randomization: Group 1 would watch the video at 1x speed, and Group 2 at 2x speed. Their performance was assessed using a test comprising 20 multiple-choice questions. The test has been applied immediately after watching the video (Immediate test), and, again after one week (Delayed test). Parametric and non-parametric statistical tests were performed.ResultsIn the Immediate test, the mean score of the 1x speed group was 11.26 +/- 4.06, while 2x speed group's mean score was 10.16 +/- 2.46. The difference was not significant t(58) = 1.26, p > .05. In the Delayed test, the mean score of 1x speed group was 9.66 +/- 3.94, while 2x speed group's mean score was 8.36 +/- 2.80. The difference was not significant t(55) = 1.42, p > .05.ConclusionsWatching the video lecture at 2x speed did not impair memory retention in medical students. This may help students to save time in their dense curricula.Practice pointsMany medical students watch lecture videos at 2x (double) speed to save time. While this is a time-saver, the negative impact on their learning is unclear.This paper describes a randomized trial that measures the learning impact when medical students watch an instructional video at 2x speed and finds that there is no significant negative impact on their learning.