According to the authors of the said study, infants with age ranging from 8-16 months and are exposed to baby DVDs and videos are strongly associated with lower scores in line with the standard language development test. What organization or interest group published this study? Because of the growth of many DVDs and videos that helps parents in enhancing and developing their children, authorities have been alarmed of the various effects of these videos among children. The study in this report has been disseminated for parents and organisations that manufacture videos and DVDs like Baby Einstein.
The researchers of this study published the findings to warn parents on the possible harm that these videos may provide with their children. Likewise, they published this study to make the manufacturers aware of the negative effects of their products among children. What do you think was their motive to publish this study? The main motive of this publish study is to enhance awareness among parents who used Baby Einstein videos and DVDs about the negative effect of these videos and DVDs for their children, especially for the language development.
In addition, the motive of this study is to let the market know that not all products for children are safe, especially in terms of learning and development process. Furthermore, the motive of the study is to let the producers of the said videos and DVDs to be more cautious of their products and to ensure that their products would not be harmful for infants and childrens physical and mental growth and development. Was the sample size big enough to be representative of the population?
In conducting a study, it is important that the researchers must be able to determine the sample size of the respondents. The size or the number of respondents in a study is important since it serve as a representation of the population as a whole. Accordingly, the authors have used telephone interviews with parents of children whose aged are ranging from 2-24 months. In this regard, it can be said that the study has been able to use a big sample size enough to represent the population for the conducted study.
What sampling method did they use? In a research study, there are different methods of sample collection such as quota sampling, simple random sampling, stratified sampling, cluster sampling and convenience sampling (Robson, 2002). The alternative methods are probability and non-probability sampling. For this study, the sampling method used in the study are not clearly stated, but it can be assumed that the researcher have used simple random sampling.
This sampling method is conducted where each member of a population has an equal opportunity to become part of the sample. As all members of the population have an equal chance of becoming a research participant, this is said to be the most efficient sampling procedure. In order to conduct this sampling strategy, the researcher defined the population first, listed down all the members of the population, and then selected members to make the sample. Could other sampling methods be used?
In this study, there are other sampling methods that can be used and this includes the purposive sampling method. Purposive sampling is a non-probability sampling technique where usually, there are one or more specific predefined groups, and this technique can be useful in situations where there is a need to reach a targeted sample quickly and where sampling for proportionality is not the primary concern; through this technique, one is likely to get the opinions of a target population (Trochim, 2002).
This part of the study is important so as to gather the sufficient data needed for the fulfillment of the objectives of the study. In this case, respondents will be chosen from those parents who used Baby Einstein for their children.
Reference Khamsi, R. (2007-08-07). Educational DVDs slow infant learning'. NewScientist. com. Trochim, W. M. (2002) Research Methods Knowledge Base (2nd Ed. ), Ohio, Atomic Dog Publishing.