A researcher obtains ethical approval for a study. Six month…

A researcher obtains ethical approval for a study. Six months later, the researcher changes the questionnaire substantially by adding several new questions about participants’ mental health but continues data collection without informing the Research Ethics Committee. Explain why this could be an ethical concern and state what the researcher should do.      

A multidisciplinary research team at a public hospital condu…

A multidisciplinary research team at a public hospital conducted a study to investigate the relationship between hearing status and speech-language performance among children aged 6–10 years referred to the Audiology and Speech-Language Therapy departments. A total of 20 children participated in the study. Each child underwent:Pure-tone audiometry, from which a Pure Tone Average (PTA) was calculated.A standardised speech-language assessment, from which a Speech-Language Score (SLS) was obtained.Classification according to hearing status.Collection of demographic information.The researcher wants to determine whether children with poorer hearing thresholds also demonstrate poorer speech-language performance.The PTA scores obtained were: 15, 20, 25, 30, 20, 35, 40, 25, 20, 30, 45, 25, 20, 35, 50, 30, 25, 20, 40, 30.Categorise the following variables into either categorical or numerical:          a. PTAb. Speech-Language Scorec. Aged. Hearing statuse. Sex